词语back-siphonage preventer,anti-siphonage device,backflow preventer
解释背部-虹吸能力防护器、抗虹吸能力设备、回流防止器
背部-虹吸能力防护器、抗虹吸能力设备、回流防止器back-siphonage preventer,anti-siphonage device,backflow preventer详细»