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escape valve 安全閥,放出閥,保險閥。

escape velocity

Even if the true number is much higher , this is only the smallest of escape valves in the great political pressure - cooker that is china ' s troubled countryside 即便真實數字要遠高于此,這也只是這個巨大的政治高壓鍋- -問題重重的中國農村- -上面最小的一個放氣筏罷了。

China moved last year from being a massive importer of steel to being a modest net exporter providing a temporary escape valve for domestic producers 去年,中國從一個鋼鐵進口大國轉變為中等凈出口國,為國內生產商提供了臨時的“減壓閥” 。

Speed control valve shuttle valve rapid escape valve 梭閥快排閥

Water system . core of manifold air - escape valve 水系統.集中放氣閥芯