- 防火等級(jí)
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fireproofing grade中文什么意思
例句與用法
- According to the types , height and fireproof grade of the buildings , four basic ringed arrangements are brought up , namely the ringed arrangemensts of branch lines , the ringed arrangements of cross mains , the ringed arrangements of feed mains and the ringed arrangements of fire waterhead . on the basis of analyzing the means , characteristic and applicability of the four basic ringed arrangements , several practicality ringed arrangements are brought up , namely the ringed arrangements of branch lines and cross mains , the ringed arrangements of cross mains and feed mains , the ringed arrangements of branch lines and feed mains , the vertical ringed arrangements of feed mains and the ringed arrangements of sprinkler system in the abnormity buildings
根據(jù)建筑物的類型、高度和防火等級(jí)等因素，提出配水支管環(huán)狀、配水干管環(huán)狀、立管環(huán)狀和消防水源環(huán)狀這四種基本環(huán)狀形式，分析了四種環(huán)狀管網(wǎng)的環(huán)狀布置方法、特點(diǎn)和適用性。在此基礎(chǔ)上又提出了支管與干管環(huán)狀、干管與立管環(huán)狀、支管與立管環(huán)狀、立管豎向環(huán)狀以及不規(guī)則區(qū)域環(huán)狀等幾種實(shí)用的環(huán)狀形式。