The experimental results show that knock is caused by end gas autoignition.
自燃通常会，但并不总是引起爆震。
Maybe we should offer free gas for a year to people who buy a car before the end of the month.
也许我们应该向在本月底前买车的顾客提供免费加油一整年的优惠。
The collection and reuse of landfill gas put an end to the risk of explosion.
填埋可燃气体收集再利用，杜绝了爆炸危险。
At end inhalation metering pump to a gas leak may have.
在计量泵的吸入端可能有气体泄漏。
One end of the gas supply pipeline is connected with the gas supply system;
送气管线的一头与供气系统连接；
One end of the gas supply pipeline is connected with the gas supply system;
送气管线的一头与供气系统连接；
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