pressure preservation的用法和樣例：
例句
- The optimized holding pressure is in the middle of the maximum and minimum normally.
優(yōu)化的保壓壓力一般為最低保壓壓力和最高保壓壓力的中間值。 - A holding pressure unit allows the pre-plasticizer or a reciprocating screw to plasticize during the long holding time.
保壓裝置使預熔器或往復螺桿在冗長(cháng)的保壓時(shí)間內加料。
