cemented是什么意思

cemented

英 [sɪ'mentɪd] 美 [sɪ'mentɪd]

adj.

灌水泥的

v.

巩固;粘牢( cement的过去式和过去分词 );（用水泥、胶等）粘结;在…上抹水泥

硬质合金的种类,代号,应用范围是什么?

分类

1、钨钴类硬质合金

牌号由YG和平均含钴量的百分数组成。钨钴硬质合金，可用来切削铸铁、有色金属和非金属材料，亦可用做拉伸模、冷冲模、喷嘴、轧辊、顶锤、量具、刃具等耐磨工具和矿山工具。

2、钨钛钴类硬质合金

牌号由YT和碳化钛平均含量组成。钨钛钴硬质合金具有较高的抗月牙洼磨损能力，适合作长切削材料的刀具。

3、钨钛钽（铌）类硬质合金

牌号由YW加顺序号组成。

硬质合金具有很高的硬度、强度、耐磨性和耐腐蚀性，用于制造切削工具、刀具、钴具和耐磨零部件，广泛应用于军工、航天航空、机械加工、冶金、石油钻井、矿山工具、电子通讯、建筑等领域。

扩展资料

钨钴硬质合金品种繁多，按其成分可分为低钴、中钴和高钴合金3类；按其WC晶粒大小可分为微晶粒、细晶粒、中等晶粒和粗晶粒合金4类，按其用途可分为钨切削工具、矿山工具和耐磨工具3类。

钨钴硬质合金的性能与合金成分、组织结构和制造工艺有关。其中最主要的因素是：粘结金属的组成和含量；WC的粒度大小和分布；碳含量；添加剂的组成和含量，以及影响合金相组成、WC晶粒大小和致密化的各种工艺因素。

与钨钴硬质合金比较，相同钴含量的钨钛钴硬质合金的抗弯强度较低，并随着TiC含量的增加而降低。

参考资料来源：百度百科-硬质合金

参考资料来源：百度百科-钨钴硬质合金

参考资料来源：百度百科-钨钛钴硬质合金

cement 和 concrete 都是水泥的意思 可是有什么区别呢？

cement 和 concrete 都是水泥的意思，但是含义用法等不完全相同。

1、含义

cement：

水泥;胶合剂;胶接剂;粘固粉

巩固;粘牢;（用水泥、胶等）粘结;在…上抹水泥

concrete：

具体的，有形的，实在的，实际的;固结成的，混凝土制的

混凝土;具体物;（图案式）有形诗;〔建〕钢筋混凝土

使凝固;用混凝土修筑;萃取

凝固;固结;变坚固;使用混凝土

2、变换形式

concrete：第三人称单数： concretes， 复数： concretes ，现在分词： concreting ，

过去式： concreted

cement：第三人称单数： cements ，现在分词： cementing， 过去式： cemented ，

过去分词： cemented

3、用法

concrete：

用作名词：混凝土 building material that is made by mixing together cement , sand, **all stones and water

用作动词：用混凝土覆盖 to cover sth with concrete

cement：

用作名词：水泥 a grey powder made by burning clay and lime that sets hard when it is mixed with water. Cement is used in building to stick bricks together and to make very hard surfaces

胶合剂；胶接剂；黏固剂 a soft substance that becomes hard when dry and is used for

sticking things together or filling in holes

共同利益联合起来的纽带，凝聚力

something that unites people in a common interest

用作动词：用水泥、胶等粘结，胶合 to join two things together using cement , glue, etc

加强，巩固（关系等） to make a relationship, an agreement, etc. stronger

4、英语释义

concrete：

① a strong hard building material composed of sand and gravel and cement and water

一种坚硬的建筑材料，由砂、砾石、水泥和水组成。

② form into a solid mass 形成固体

③ capable of being perceived by the senses 能够被感觉到的

④ formed by the coalescence of particles 由微粒聚结形成

cement：

① a specialized bony substance covering the root of a tooth

覆盖牙齿根部的一种特殊的骨质物质。

② something that hardens to act as adhesive material

变硬的东西，起粘合材料的作用

③a building material that is a powder made of a mixture of calcined limestone and clay

由煅烧石灰石和粘土混合制成的粉末状建筑材料。

④ bind or join with or as if with cement

用水泥粘合或接合

凝成的拼音

凝成的拼音[níng chéng]。

1、液体遇冷变成固体，气体因压力增加或温度降低变成固体。

2、凝聚成。

3、凝聚到一起。

4、凝结而成。

例如：王家新《在山的那边》：在山的那边，是海！是用信念凝成的海。

凝成友谊A Cemented Friendship.

凝成胶状的jellied.

凝成胶状jelling；gelieren.

常凝成胶状Usually Jellied.

凝成一尊雕塑Cemented A Statue.

凝成块的clotty；caseous.

加热凝成树脂thermosetting resin.

凝成一朵雪Condensed Into A Snow.

凝成胶状 凝成胶状gelieren.

凝成[níng chéng] congeal into; solidify; cement:militant friendship cemented with blood shed in war.

鲜血凝成的战斗友谊

Steam condenses into drops of water.

水蒸气凝成了小水滴。

以上内容参考：百度百科-凝成

钴是什么?(英文答案)

Cobalt is a hard

lustrous

silver-gray metal

a chemical element with symbol Co. It is found in various ores

and is used in the preparation of magic

wear-resistant

and high-strength alloys. Its pounds are used in the production of inks

paints

and varnishes. 27 iron ← cobalt → nickel - ↑ Co ↓ Rh 图片参考：upload.wikimedia/ *** /mons/9/9e/Co-TableImage Periodic Table - Extended Periodic Table General Name

Symbol

Number cobalt

Co

27 Chemical series trition metals Group

Period

Block 9

4

d Appearance metallic with gray tinge 图片参考：upload.wikimedia/ *** /mons/thumb/5/51/Co%2C27/125px-Co%2C27 Atomic mass 58.933195(5)  g·mol−1 Electron configuration [Ar] 4s2 3d7 Electrons per shell 2

8

15

2 Physical properties Density (near r.t.) 8.90  g·cm−3 Liquid density at m.p. 7.75  g·cm−3 Melting point 1768 K (1495 °C

2723 °F) Boiling point 3200 K (2927 °C

5301 °F) Heat of fusion 16.06  kJ·mol−1 Heat of vaporization 377  kJ·mol−1 Heat capacity (25 °C) 24.81  J·mol−1·K−1 Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 1790 1960 2165 2423 2755 3198 Atomic properties Crystal structure hexagonal Oxidation states 2

3 (amphoteric oxide) Electronegativity 1.88 (Pauling scale) Ionization energies (more) 1st:  760.4  kJ·mol−1 2nd:  1648  kJ·mol−1 3rd:  3232  kJ·mol−1 Atomic radius 135  pm Atomic radius (calc.) 152  pm Covalent radius 126  pm Miscellaneous– Magic ordering ferromagic Electrical resistivity (20 °C) 62.4 n Ω·m Thermal conductivity (300 K) 100  W·m−1·K−1 Thermal expion (25 °C) 13.0  µm·m−1·K−1 Speed of sound (thin rod) (20 °C) 4720 m/s Young's modulus 209  GPa Shear modulus 75  GPa Bulk modulus 180  GPa Poisson ratio 0.31 Mohs hardness 5.0 Vickers hardness 1043  MPa Brinell hardness 700  MPa CAS registry number 7440-48-4 Selected isotopes Main article: Isotopes of cobalt iso NA half-life DM DE (MeV) DP 56Co syn 77.27 d ε 4.566 56Fe 57Co syn 271.79 d ε 0.836 57Fe 58Co syn 70.86 d ε 2.307 58Fe 59Co 100% Co is stable with 32 neutrons 60Co syn 5.2714 years β- 2.824 60Ni References Notable characteristics Cobalt is ferromagic with atomic number 27. The Curie temperature is of 1388 K with 1.6~1.7 Bohr magons per atom. It is frequently associated with nickel

and both are characteristic ingredients of meteoric iron. Mammals require *** all amounts of cobalt salts. Cobalt-60

an artificially produced radioactive isotope of cobalt

is an important radioactive tracer and cancer-treatment agent. Cobalt has a relative permeability o thirds that of iron. Metallic cobalt monly presents a mixture of o crystallographic structures hcp and fcc with a trition temperature hcp→fcc of 722 K. Common oxidation states of cobalt include +2 and +3

though +1 is also seen. [edit] Applications Alloys

such as: Superalloys

for parts in gas turbine aircraft engines. Corrosion- and wear-resistant alloys. High speed steels. Cemented carbides (also called hard metals) and diamond tools. Mags and magic recording media. Alnico mags. Catalysts for the petroleum and chemical industries. Electroplating because of its appearance

hardness

and resistance to oxidation. Drying agents for paints

varnishes

and inks. Ground coats for porcelain enamels. Pigments (cobalt blue and cobalt green). 图片参考：upload.wikimedia/ *** /mons/thumb/7/7a/Bristol.blue.glass.arp.750pix/145px-Bristol.blue.glass.arp.750pix 图片参考：en. *** /skins-1.5/mon/images/magnify-clip Cobalt blue glassen. *** /wiki/Cobalt

cobalt (Co)

参考: me

Cobalt is a hard

lustrous

silver-gray metal

a chemical element with symbol Co. It is found in various ores

and is used in the preparation of magic

wear-resistant

and high-strength alloys. Its pounds are used in the production of inks

paints

and varnishes.

钴的英文是Cobalt.(Co)

cobalt 简写(Co)

参考: periodic table

钴是化学元素之一，化学符号为Co

英文好像是cobalt

cobalt

每日一词 cement

1. 认识这个词（基础篇）

词：cement

英英释义：to make a relationship, idea etc stronger or more certain

例句：Collective goals can help cement solidarity.

2. 体会这个词 （进阶篇）

“cement“作为名词，表示“水泥”，作为动词可以表示“把...粘合”，常常被引申为表示“巩固” “加强”。和同样可以表示“巩固” “加强”的表达来说，比如 “consolidate” “make something stronger”，cement 更富有画面感。

比如共同的目标可以让一个群体更团结：

Collective goals can help cement solidarity.

cement 后常接表示“关系”的名词，比如 relationship, friendship, tie, bond, connection 等词。比如，相似的价值观和阅历可以加强关系： 

Shared values and experiences can cement a bond. 

cement 的这种用法也是《经济学人》中的常客，比如：

Republicans won statehouses that Democrats had held for decades; in several competitive states they cemented their hold on power through gerrymandering.（'they cemented their hold on power through gerrymandering' 表示“他们（民主党）通过改划选区加强了他们对权利的掌控”）。

3. 从认识到会用（作业）

1）翻译下面的句子：

八卦可以让人们迅速增强友谊。

（参考翻译：The exchange of gossip can efficiently cement a friendship.）

2）结合自己的生活、学习、工作、兴趣等，先想象在什么语境下会用到这个表达，然后再进行造句。

场景1：国际旅游可以国家间的关系。

造句：International travel can cement relations between countries. 

场景2：进博会可加强中国与其他国家的关系

造句：China International Import Expo can help to cement its relationship with other countries.