back up roll 中文意思是什麼

back up roll 解釋
支承輥
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • up : adv （superl uppermost ）1 向[在]上，向[在]上面；向[在]被認為處于上方的地方或方面〈如河流的源頭，...
  • roll : vt 1 滾，轉，推滾（桶、車輪等），使（煙、塵土）滾滾上升，滾滾推進（浪、水等）；滾動，溜轉（眼睛）...
  1. Xm ) trundle needle, trundleing the post thrust bearing trundles the needle through the roll part of the body, cylinder roller and thrust maintain shelf and the thrust bed down the livestock to make up, trundleing needle and the cylinder roller is subjected to the shelf maintaining that the thrust maintains and guides. moreover thrust bed down the livestock against the difference, shaft, the pedestal encircles and employs in company, fix module shaft shoulder end face and the shell opening back plane dimensional tolerance, geometry accuracy, rigidity, axial is moved up and down, coarse degree ought to accord with the internation ， national standard stipulation demand

    滾針，滾柱推力軸承由滾動體滾針，圓柱滾子及推力保持架和推力墊圈組成，滾針和圓柱滾子受到推力保持的保持架引導，並與不同的推力墊圈，軸，座圈一起使用，安裝組件的軸肩端面和外殼孔底面的尺寸公差，幾何精度，剛性，軸向跳動，粗糙度應符合國際，國家標準規定的要求。
  2. Players who try to roll the racquet up and over most often are swinging forward with a racquet face that is tilted or laid back

    時常嘗試將球拍向上?越的球員正在向前揮拍，此時的網拍面是往後傾斜或往後放置的， 。
  3. 2. before using this product, it is required to check the appearance of safety rope and conduct trial lock for2 - 3 times trial lock method : it is easy to pull out roll - up safety belt, which muse be locked if it is pulled forcibly and can draw back into the device while loosening hand. if safety rope can not draw back into completely, just pull it out a little bit and that will be ok

    2 .使用本品前應對安全繩外觀做檢查，並試鎖2 3次試鎖方法:慢慢拉出卷收安全帶輕松自如，用力猛拉卷收安全帶應能鎖止，鬆手時安全帶應能自動回收到器內，如安全帶繩未能完全回收，只需稍拉出一些安全繩即可。
  4. A mathematical model on edge chamfer of back - up roll and its grinding technology

    支承輥邊部導角數學模型的建立及其磨削工藝
  5. An investigatoon into failing of nos 368 and 369 back - up roll of the cold rolling mill

    武鋼冷軋廠369號和368號支承輥失效原因分析
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