All rig personnel should familiarize themselves with the location of high pressure lines.
所有井队人员,都应当熟悉他们自己与高压管线的定位。
All rig personnel should not energy to tighten or loosen unions or other connections of pipe under pressure.
任何井队人员都不能在带压力的情形下松紧由壬或其他管线的连接。
All rig personnel should not attempt to tighten or loosen unions or other connections of pipe under pressure.
任何井队人员都不能在带压力的情况下松紧由壬或其他管线的连接。
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