The elementary principle and electric circuit design of large submersible pump test system were given.

设计了一种大功率、双频率、高精度潜油电泵试验系统,分析了其测试原理,介绍了该系统电源的一次回路设计方法.

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Based on the crystal growth elementary principle, a plagioclase crystalline velocity equation is suggested.

从晶体生长的基本原理出发, 提出了按非连续机制生长的斜长石晶体结晶速率表达式.

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