这家石油商店生意日趋兴隆。
Direction of rotation of the gear pump, oil outlet in accord.
齿轮泵的旋转方向要与进、出油口相符。
Detecting and displaying oil flow rate, oil temperature and purified oil outlet pressure.
数字显示通油流量、油温、净油出口压力。
Detecting and displaying oil flow rate, oil temperature and purified oil outlet pressure.
数字显示通油流量、油温、净油出口压力。
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