concave cut 中文意思是什麼
concave cut
解釋
凹面切割-
The diameter of a sphere is four times the focal length of a concave mirror cut from it
凹面鏡如果是從圓球上切下來的，圓球的直徑會是凹面鏡焦距的四倍。 -
Spiral bevel gear presents serials of good performance at transimision, carrying capability etc, of which klingelnber cycloid bevel gear is mostly widely used. it has its own characteristics : ( 1 ) the concave and convex flanks of the gear slot are cut at the same time continuously, this benefit to improve productivity. ( 2 ) universal double cutter heads are used which make it easier to control the tooth contact area
螺旋錐齒輪具有傳動性能優良，承載能力高的優點，克林貝格擺線錐齒輪是一種最具代表性的螺旋錐齒輪齒制，除具有一般螺旋錐齒輪的優點外還具有以下的特點: （ 1 ）採用連續分度雙面法銑齒，避免了跳齒分度，有利於提高加工精度。 -
The comparison and application show that the normal probability model can be applied to forecasting the performance of water cut when the oilfield enters into medium water cut stage for either s - type, convex - type or concave - type curves
油田開發實踐表明，當油田進入中含水期后，不論是s型、凸型，還是凹型水驅特徵曲線都可以應用正態概率模型進行預測。
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