金属的

"Bimetallic:Consisting of two metals, often bonded together and having different rates of thermal expansion."

双金属的：由两种通常是结合在一起且具有不同热膨胀系数的金属组成的。

Nowadays, such metal as steel has been widely used as tube material, but the corrosiveness of secondary refrigerant to metal tube has negative effect on the long-term stability.

目前，钢材等金属材料由于其具有较高的热导率而被广泛地用作盘管材料，但乙二醇溶液对钢等金属的腐蚀性会对盘管工作的长期稳定性产生严重影响。

Cobalt (100) face of hexagonal system parallels example surface and the intensity of diffraction peaks increased obviously. Finally the possibility of codeposition of PTFE and cupper or other metal alloys was initially researched.

最后，初步探索了PTFE与Cu或二元合金共沉积的可能性，试验结果显示，它们均可形成PTFE和金属的复合镀层，与无PTFE的金属合金层对比后发现，各复合镀层摩擦学性能都有所提高。

In addition, soil acidity presented significant and positive correlations with percentage of DTPA extractable Cd and Pb in their total contents.

在84d以内，随着时间的延长，金属的DTPA浸提量逐渐下降，84d到168d内，金属的DTPA浸提量变化不大。

The surface charges on cathodic and anodic areas of galvanic couple are much different from those on single metals.

偶合金属阴阳极区表面的过剩电荷与单独金属的表面过剩电荷状态具有显著的差异。

A hammer has a metal head and a wooden or metal handle.

锤子有个金属的头，一个木质的或金属的把柄。

It is a rule that applies to the mensuration of zinc(0～300 mg/L) in the washing liquid in the course of making acid gas.

在烟气洗涤液中有价金属的含量对硫酸的生产具有较大的影响，若锌、铁、汞等金属

A crack in metal resulting from metal fatigue .

由于金属的腐朽而导致的金属里的裂缝。

This is the principle of the electron microscope, which is used, among other things, in biology and metallography to look at details of cells or alloys.

这就是电子显微镜的原理。电子显微镜用在生物学和金属组织学的用途，用来观测细胞或金属的细节。

Electroless nickel plating is a chemical reaction in which metal atoms are deposited by self-catalysis at surface of the metal.

化学镀镍是通过金属表面的自催化还原沉积金属的一种化学反应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。