黑色星期五通常是一年中销量最大的一天，而且也是客流量最大的一天。
Black Friday used to be the biggest shopping day of the year.
如果两个洋面从不通变成通，它就会发生巨大的水流量的变化。
If the surfaces of two oceans getting through, their water flow would be great changes.
根据流量选择阀的通径。
2位2通常闭电磁阀，拥有流量调节功能，适用于液体介质。
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。
Detecting and displaying oil flow rate, oil temperature and purified oil outlet pressure.
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