The study proved that the major harmful material in tailing water was Mo and Cd.
研究证明尾砂水中所含有害物质主要是钼与镉。
The fume hood is the main safety in lab. In order to control harmful material leakage and keep the experiment working properly, the face velocity must be controlled efficiently.
通风柜是实验室中主要的安全设备，为了控制有害物质的外溢和保证实验正常进行，必须有效地控制罩面风速。
The fume hood is the main safety in lab. In order to control harmful material leakage and keep the experiment working properly, the face velocity must be controlled efficiently.
通风柜是实验室中主要的安全设备，为了控制有害物质的外溢和保证实验正常进行，必须有效地控制罩面风速。
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