[化] 弹簧式安全阀 spring loaded pressure relief valve: 弹簧加载的压力泄放阀spring-loaded pressure relief valve: 弹簧式安全阀spring-loaded relief valve: 弹簧安全阀spring loaded pressure valve: 弹簧压力阀pressure relief valve spring: 减压阀弹簧下载手机词典可随时随地查词查翻译