obstructed crest of spillway的意思|示意
美 / /
英 / /
溢洪道顶部受阻
obstructed crest of spillway的网络常见释义
设闸的溢洪道顶 obstructed crest of spillway ==> 设闸的溢洪道顶 obstructed labor ==> 梗阻性分娩,阻塞性分娩=>闭塞性分娩 ..