流已經關閉 的英文怎麼說
中文拼音 [liúyǐjīngguānbì]
流已經關閉
英文
mpclosed-
As we know, when meeting these soils, many breakdown and danger will occur, such as the blockings, which has attracted attention of many construction personal on site. however, at present, there exist many unknown fields in blocking. firstly, the definition of blocking is not interpretative
但是，如果地層是粘粒含量較少的卵石層、砂土地層、風化巖地層，進入壓力艙的土體就很難形成這種「塑性流動狀態」 ，從而嚴重阻礙施工進程甚至造成施工事故，閉塞就是常見的一種施工障礙，已經引相關方面的重視。Fire protection system installations : the national fire protection agency ( nfpa ) guidelines require a confirming flow test be conducted whenever a " main line " valve such as the shutoff valves or a backflow assembly have been operated
消防系統安裝：美國國家消防局（ nfpa ）指導原則要求只要是「主管線」上已經運行的閥門，如關閉閥或防迴流閥總成，都需要進行流量確認檢測。
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