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。
2
Vacuum Gas - quenching is an important means to improve the external and internal quality of circular mould.
真空气淬是提高环模表面质量和内在质量的重要热处理工艺手段。
3
The pump features a variable discharge port design which adjusts automatically to the internal compression ratio of the vacuum pump resulting in maximum efficiency throughout the vacuum range.