Fill material shall not be stockpiled on embankments without the express permission of the Engineer.
填充材料不得储存在河堤没有明确许可的工程师。
Before the completion of work, the service engineer isn't allowed to leave the site or without the permission of the customer.
故障未处理完毕，服务工程师不能离开现场。离开现场需得到顾客许可。
Before the completion of work, the service engineer isn't allowed to leave the site or without the permission of the customer.
故障未处理完毕，服务工程师不能离开现场。离开现场需得到顾客许可。
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