This paper deals with the design of gaschecking safety system for coal mine, which can be put into use for the purpose of monitoring the component of gas so as to keep the coal mine safe.
针对煤矿开采中存在有易爆炸气体瓦斯的问题,提出并设计安装了矿井瓦斯安全检测系统。
2
Imagine buying a car, driving it off the lot and never checking or changing the oil, filling it up with gas, or getting regular tune ups.
想象你买一辆小车,把它开走,可是从不检查油或换油,也不加油,更不进行常规调校。
3
So if they chose to ride a bike instead of a car, an automatic transfer of the allotted monthly gas money saved goes from a checking account into a savings account.