English translation for "closed back"

鞋后密口

Example Sentences:

	1.	Xf slowly - closing back vavle - changmao Xf型橡胶缓闭逆止阀- changmao
	2.	The beach was closed back in 1981 when water quality hit alarmingly low levels 过去的青山湾污染非常严重，水质极差，因此在1981年开始关闭。

Similar Words：

"closed association" English translation, "closed atrial septectomy" English translation, "closed atrial septostomy" English translation, "closed automatic route restorable system" English translation, "closed autotest" English translation, "closed ball" English translation, "closed ballot" English translation, "closed bank" English translation, "closed barge carrier system" English translation, "closed basin" English translation