Flammable gas found in the relay indicates some internal fault such as overheating or arcing, whereas air found in the relay may only indicate low oil level or a leak.
如果在继电器中发现可燃气体，这说明有内部故障，比如过热或者电弧作用；而继电器内的空气只说明油位低或者有漏油。
In actuality, all such operations run through a kernel, which is full of components that relay messages between the machine's low-level hardware and higher-level programs.
事实上，这些运行工作都是通过一个核心部分，它是由很多可以在低端的硬件与高端的程序间转送信息的组件组成的。
Based on the structural characteristics and site conditions, low level spread assembly and pulling bar group relay lifting method is adopted to install the shell.
施工中针对网壳结构特点及现场施工条件，采用低空外扩拼装、拔杆群接力提升的方法完成了安装。
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