Asked | Open questions | Answered Points Date Pair Term / Answer given Level Status Gloss - May 3 '06 eng>chi non-removable vacuum breaker devices 不可拆除的真空止回（真空单向）装置 pro closed no 4 May 1 '06 eng>chi induced, draft-type cooling towers 排风式凉水塔 pro closed ok Asked | Open questions | Answered