sag of roof中文意思是什麼

sag of roof解釋
頂板坳陷

  • sag: vi ( gg )1 (橋、梁等)陷下,壓彎;(門)成一邊高一邊低狀;(蠟燭等)彎曲;(繩、天花板等)鬆弛...
  • of: OF =Old French 古法語。
  • roof: n 1 屋頂,房屋;家屋。2 (放行李的)車頂;笠形罩。3 上頜。4 最高部,頂部;【礦物】頂板。5 【航空...

※英文詞彙sag of roof在字典百科英英字典中的解釋。

  1. The joints investigation of mined - out areas shows that structure surface is dominative factor of roof stability of mined - out area in jiaguo mine

    夾溝礦采空區的節理調查表明,結構面是夾溝礦采空區頂板穩定性的主控因素。
  2. By analyzing and predicting the microclimate in greenhouse in typical weathers, the conclusions are that high temperature with low humidity weather and high temperature with high humidity appear one after the other. the measures are proposed as the followings : to the former, it should be taken to decrease the temperature with soppy shade - fan or spray inside or outside ; to the latter, it should be taken to enlarge the ventilation area, to fit spray apparatus at the top of roof outside, to adopt havelock outside instead inside, to coat the roof white, etc

    通過對典型天氣下溫室小氣候變化規律分析和預測,其結論是:從7月中旬到8月中下旬,室內相繼出現高溫低溫和高溫高濕天氣,建議分別採取的適宜措施是:濕簾-風機降溫、高壓噴霧降溫、屋頂噴淋降溫和增大屋頂通風窗的通風面積、安裝屋頂噴淋(霧)設備、改溫室內遮陽為外遮陽、塗白溫室屋頂等。
  3. Fractals forecast of roof weighing in stope

    用分形預報采場頂板來壓
  4. Several analysis methods such as casting slice, scanning electron microscope, porosity and permeability data, mercury injection data and density of fissures are used to study the reservoir properties of volcanic rocks in huang - yu - re area, the east sag of liaohe basin. volcanic rocks in this area are mainly composed of basalt, diabase, tuff and trachyte. the dominating type of volcanic reservoir space includes secondary solution pores and structural fissures

    通過火山巖的常規物性分析壓汞分析和裂縫密度分析,結合鑄體薄片和掃描電鏡,研究了遼河油田黃于熱地區的火山巖儲層物性特徵,認為該區火山巖儲層巖石類型主要有玄武巖輝綠巖凝灰巖和粗面巖,主要儲集空間類型為次生的構造裂縫和溶蝕孔縫。
  5. According to roof safety factor of 1. 2 for the mined - out area, minimum safety roof thickness at different rock in various span mined - out area was calculated by flac software, which transfixion of plastic zone was taken as criteria of roof breakage by using strength reduction technology and dichotomy theory

    摘要利用強度折減技術和二分法原理,以塑性區的貫通作為頂板破壞的標準,當采空區頂板的安全系數等於1 . 2時,利用flac軟體計算得出各種跨度空區在不同巖層中的最小安全頂板厚度。
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