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Hydrocarbons commonly occur in sedimentary basins and are absent from intervening areas of igneous and metamorphic rocks.
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在沉积盆地中，碳氢化合物很常见，而在间杂的火成岩与变质岩中则找不到。 |
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Hydrochloric acid is secreted in the stomach and forms part of the gastric juice.
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胃里可分泌出盐酸，而盐酸是胃液的组成部分。 |
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Hydrocotyle sibthorpioides Lam.
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天胡荽 <H. |
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Hydrocyclone is used to p urify bentonite according to the structure characteristicof hydrocyclone, the effects of apex diameter, flow quantities, liquid-solid ratio anddispersant on the recovery r atio and purity of bentonite have been studied, the optim
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根据水力旋流器的结构特点，应用水力旋流器进行湿法提纯的工艺流程，研究了底流孔径、流量、液固比和分散剂对膨润土含量和回收率的影响，提出了优化的工艺参数。 |
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Hydroelectric industry has been rapidly developed in recent years, however, there are also some problems of ecoenvironment.
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摘要近年来，水电建设在迅速发展的同时也不断暴露出一些问题。 |
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Hydroelectric power plants of today generate a lot more electricity.
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现在的水力发电厂则能够产生更多的电力。 |
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Hydroelectricity, which will be the energy discharged by the project, causes much less pollution than coal-burning power plants.
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三峡工程利用水能发电，与燃煤电厂相比，可大量地减少污染物的排放。 |
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Hydroentangled polyester, soft, very low NVR values, ideal for wiping optical surfaces.
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水蒸聚酯纤维,柔软,非挥发性残渣含量非常低,极适于光学表面擦拭. |
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Hydrofluoric acid will react with carbon steel and monel producing a fluoride buildup on the metal surfaces which can render the valve inoperable.
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氢氟酸会与碳钢和蒙乃尔发生化学反应，产生氟化物，聚积在金属表面，从而致使阀门无法正常工作。 |
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Hydrogen and oxygen are gases.
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氢和氧是气体。 |
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Hydrogen and oxygen can compose to water.
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氢与氧化合成水。 |
