The construction and principle of the balanced compound gear pump is introduced.
介绍了平衡式复合齿轮泵结构原理。
Experimental studies on compound geomembrane during construction period are presented.
并介绍了在施工过程中对复合土工膜的一些试验研究。
An iron compound frequently used in the construction of magnetic cores.
一种铁的化合物，常用于制作磁芯。
Correct construction of complex and compound sentences.
学习正确的复杂和复合句。
Correct construction of complex and compound sentences.
学习正确的复杂和复合句。
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