double-seam 中文意思是什麼
double-seam
解釋
二重卷邊-
Double unit coal mining technology for thin seam coal mining tace with road retained for next sublevel
薄煤層沿空留巷對拉開采技術 -
Double needles fell seam
雙針埋夾 -
Double needle fell seam
雙針埋夾 -
Heavy - gauge steel is automatically formed, rolled and welded to assure a continuous seam for glass lining. each tank is double tested to ensure quality
內膽由超厚鋼板通過自動化控制設備滾軋、成型、焊接而成,確保在塗敷烘烤熔融藍鈷陶瓷工藝過程中內膽不會出現縫隙。每個內膽都經過雙重質量檢驗以確保質量合格。 -
Lap seam folder for double needle machine
雙針衣袖接縫器 -
Standard specification for steel line pipe, black, plain end, longitudinal and helical seam, double submerged - arc welded
雙埋弧焊縱向和螺旋焊縫平頭無鍍層鋼制總管的標準規范 -
The author puts forward using double pore model and two permeability model and triple medium models to represent its infiltrating fluid model and studies partly the infiltrating fluid. ( 2 ) various kind of test well curve form characteristic crevices - cave model on reservoir was studied. the test well curve of carbonate seam cave oil reservoir divides to 7 styles : homogeneity, double - pore, vertical - transmitting, compound, low - seepage, double - seepage and triple medium
充分利用動態資料和靜態資料,結合塔河油田碳酸鹽巖儲層特徵,開展典型探井的試井分析研究,將碳酸鹽巖縫洞型油藏試井曲線劃分為7大類:均質儲層油藏、雙孔介質油藏(包括孔隙?裂縫介質油藏、裂縫?孔隙介質油藏) 、垂直導流型油藏、復合油藏、低滲型油藏、雙滲介質油藏和三重介質油藏。 -
A new trial of the middle road repair at double - unit face in thin seam
薄煤層對拉工作面中巷維護一種新的償試 -
The mining technology of fully mechanized mining, usual mining, rotation, hilt and double unit face on thin coal seam of tianchen mine
田陳煤礦薄煤層綜采與對拉工作面開采技術 -
Trial of bolting with wiremesh along double gob - side entry in three soft seam
三軟煤層雙沿空掘巷採用錨帶網支護的嘗試 -
Double - unit coal mining technology for thin seam coal mining face with road retained for next sublevel
薄煤層採煤工作面沿空留巷對拉開采技術
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