preaccelerationsystem前置加速系统
prealignment预先对准
preamplifier前级放大器
precipitationofoxygen氧气析出
prefabricatedmasnry预组圬工
pressbolt加压螺丝
pressring加压环
press-and-blowprocess压吹法
pressedglass压制玻璃
pressing压制
pressurecasting压铸
pressurecooker压力锅
pressurefilter压力过滤器
pressureshock压力冲击
pressuresintering加压烧结
pretreatmentequipmentwithmembranefilter薄膜过滤器前置处理装置
pretretmentequipment前置处理装置
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