1.
Chemical bond mainly includes electrovalent bonds, covalent bonds, and metalic bonds.
化学键主要有离子键、共价键、金属键。
2.
catch (incl. ball spring catches), of base metal, for furniture
家具销键（包括弹子弹簧止档）,贱金属制
3.
Keywords: TiAl intermetallics, high temperature oxidation resistance, surface modification.
关键词：钛铝介金属、温氧化抵抗、面改质。
4.
Research on the Key Problems of NC Incremental Sheet Metal Forming;
金属板材数控渐进成形关键技术研究
5.
Research on the Bonding of Si/Si and Si/GaN Using Intermediate Metal Layers;
利用金属过渡层键合Si/Si、Si/GaN的研究
6.
(med) the process of removing a heavy metal from the bloodstream by means of a chelate as in treating lead or mercury poisoning.
由一个金属离子与两个或两个以上非金属离子构成配位键的过程。
7.
Raman and Infrared Spectral Studies of Tungsten Organometallic Carbyne Complex at High External Pressure
金属钨三键多核金属有机配合物高压拉曼及红外光谱研究
8.
Average-Bond-Energy and Fermi Level on Metal-Semiconductor Contacts
金属-半导体超晶格中的金属费米能级和半导体平均键能
9.
Unique chemical properties of metal-carbon bonds in metal-carboranyl and metal-carboryne complexes
碳硼烷和碳硼炔金属配合物中金属-碳键的化学性质
10.
keyboard pipe-organ; harmonium and similar keyboard instrumen with free metal reeds
键盘式管风琴；鼓式簧风琴及类似的带自由金属簧片的键盘乐器
11.
Slelective Catalysis of Metalloporphyrins for Aerobic Oxidation of Double Bond and Allylic C-H of Olefines;
金属卟啉对空气氧化烯烃双键与烯丙位碳氢键的选择性催化作用
12.
Intermetallic Compounds Formation and Reliability on Bonding Joints of Copper Wire and Gold Wire with Aluminum Alloy Pad;
铜及金丝与铝合金焊盘键合的金属间化合物生长和可靠性
13.
These derivatives appear to undergo primary ??dissociation of a metal-phosphorus bond.
这些衍生物似乎主要发生金属--磷键的?舳狭选?/UK>
14.
CHARACf ERISTIC OF METALLIC BOND AND ANOMALY OF MELTING POINT IN THE EARLY ACTINIDE METALS
轻锕系金属的价键特征及其熔点递变反常现象
15.
Keywords: ash, heavy metal, dioxin, melting technology, slag.
关键词：灰渣、重金属、戴奥辛、熔融技术、熔渣。
16.
Selective Activation of C-H Bond by Transition Metal Oxoes: A Theoretical Study;
过渡金属端氧上C-H键选择活化的理论研究
17.
Study on Some Key Problems of Metal-Belt Continuously Variable Transmission;
金属带无级自动变速传动的关键问题研究
18.
Study of Nitrogenatom Coordination Promoted Homolytic Reaction of the Ln-N Bond;
氮原子配位促进的稀土金属—氮键均裂反应研究