During transport to the pipeline construction site, care shall be taken to ensure that the coated joints are not placed on unprotected bolsters.
在往输油管施工现场运输的工程中，应当注意确保补口处于受支撑保护的位置。
Due care must be taken to ensure that the pulse signal itself shall show no irregularities and no interruptions.
应注意保证脉冲信号本身不出现不规则现象和中断现象。
Due care must be taken to ensure that the pulse signal itself shall allow no irregularities and no interruptions.
应注意保证脉冲信号本身不出现不规则现象和中断现象。
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