V one permit should never be valid more than of one working shift.
一个动火证只适用一个班次的作业,最多一天有效。
Use of smaller valves or V-Port trim with lower flow capacity may permit the valve to be open at a greater percentage, thus avoiding damage.
采用具有更小流量的通径更小的截止阀或V形阀内件截止阀,可能使得阀门能够具有更大的开启度,因此可以避免损坏。
V. office to get my driver's permit. Some of my friends already had their licenses, so I figured it was time.
当时朋友中有很多已经有驾照了,所以我觉得也是时候了。
V. office to get my driver's permit. Some of my friends already had their licenses, so I figured it was time.
当时朋友中有很多已经有驾照了,所以我觉得也是时候了。
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