Safe: negative pressure combustion, not against fire, without the danger of explosion, and water, electricity, auto alarm, using PC control.

安全性高： 负压燃烧、不逆火、无爆炸之虞，且断水、断电、自动报警，采用PC控制。

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The piezoelectric sensors can also be used to measure the internal combustion engine measure pressure and vacuum measurement.

压电式变送器也可以用来测量发动机内部燃烧压力的测量与真空度的测量。

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A closed loop controlled ignition system with the use of an optical fiber dynamic combustion pressure sensor is presented in this paper.

介绍了一种应用光导纤维动态燃烧压力传感器的点火闭环控制系统。

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Tuesday's first launch attempt was aborted because of low pressure in the combustion chamber.

NPR: SpaceX Makes Progress with Rocket Test

The first attempt to launch the rocket was halted Saturday when a flight computer detected high pressure in an engine combustion chamber.

CNN: Historic launch of private rocket heralds new era

Increasing fuel pressure has worked so far by lowering combustion temperatures.

FORBES: Clearing the Air