Moreover, The paper sums up the present situation of study on pressure distribution and doping gas, etc.
也从阶梯面的压力分布、掺气特点等方面概述了国内外对阶梯坝水力特性的研究现状。
The device includes a central control part, a motor control part, a control panel and a doping gas control part.
它包括中心控制部分、电机控制部分、控制面板、 及掺杂气体控制部分；
Phosphine (PH3) is an important electronic specific gas which is mainly used in fields of N-type semiconductor doping, ion implement and chemical vapor deposition (CVD) etc.
磷化氢(PH3)是一种重要的电子特气，主要用于n型半导体的掺杂、离子注入和化学气相沉积(CVD)等。
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