Vary the depth, speed and pressure.
变化深度、速度和压力。
The smoke of steel ball bearing pressure such as depth limit ring precision sure.
钢球的烟如深度有轴承压限位环精度确定。
The air pressure varies with the height, and the water pressure varies with the depth.
气压随着高度变化，水压随着深度变化。
The mining depth of this deposit is great and its underground pressure activities are Strong.
矿床开采深度较大，地压活动更为强烈；
The mining depth of this deposit is great and its underground pressure activities are Strong.
矿床开采深度较大，地压活动更为强烈；
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