backflow的翻译，读音

近义词

n. reversed flowregurgitation

例句

Single well backflow tracer test 单井示踪剂回流试验 。

Four required per backflow preventer. 每个防回流阀需要四个. 。

Thirdly, the intelligence backflow has increased. 三是智力回流增多。

Especially made for testing all reduced pressure zone backflow preventers. 专用于检测所有减压区防回流阀. 。

Certified testers of backflow assemblies must conduct this confirming test. 必须由有资格证书的防回流阀检测人员进行这种确认检测. 。