现场树立醒目的安全警示牌、标语及各种操作规程作业牌，造成安全生产良好的氛围。
The safety note boards, slogans, and varied operation regulation boards will de installed on the constructing field, forming a good atmosphere of product safety.
在确认安全的情况下让车速缓缓下降，停稳后在车后方竖立危险警示牌，立即更换备胎。
In confirmation of the security situation, make speed slowly in the rear car stopped up after them, replaced immediately danger spare tire.
标志桩、测试桩、里程桩、警示牌等燃气管道设施安全识别标志；
The safety identification marks for fuel gas pipeline facilities, such as mark stake, test stake, mile stake, warning board, etc. ;
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