undercutting 中文意思是什麼

undercutting 解釋
暗掘 凹割 低切餾分 底切作用 地下截根 掏蝕作用 切底作用
  1. There are certain circumstances which call for indirectness such as a controller's wishing to alert a division manager to a problem without undercutting him or jeopardizing their future relationship.

    有些特定的情況要求委婉含蓄例如一位管理員希望提醒一位分部經理注意某問題,而又不挖他的墻角或危害他們未來的關系。
  2. Treatment of congenital proximal radioulnar synostosis with undercutting rotaion osteotomy

    肘關節外側進路治療肘關節陳舊性脫位
  3. On the condition of “ many - head ” and “ small drive ratio ” , the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously. it has devoted to a new type hourglass worm _ sphere double enveloping hourglass worm. the coordinate system is established according to the frock. the meshing equation and the tooth equation of worm and gear have been developed and the distribution of contact line on gear tooth is analyzed. to evaluate the meshing quality , four meshing quality indexes and five original parameters are put forward. through mass programming computing , the relations between meshing quality and original parameters are derived and depicted by graphs

    考慮到平面二次包絡環面蝸桿傳動在多頭小傳動比條件下根切與齒頂變尖的矛盾很難同時解決且嚙合性能較差,介紹了一種新型環面蝸桿傳動? ?球面二次包絡環面蝸桿傳動.在研究過程中,根據工裝建立了坐標系,根據一二包過程的運動關系推得了嚙合方程和蝸桿與蝸輪的齒面方程,分析了蝸輪齒面上的接觸線分佈.為了評價嚙合性能,提出了4項性能指標和5項原始參數,通過大量編程計算得到了嚙合性能指標與原始參數之間的關系,並以圖表直觀的表示
  4. With the new - simple method, the equation of circle - arc - enveloping curve are deduced. also the relationship between the arc radius, the radius of center distribution and the distance of centers is given to avoid undercutting

    文中採用新方法推導出了圓弧包絡線轉子型線方程,還給出了避免出現根切現象的圓弧半徑、圓弧圓心分佈圓半徑以及中心距三者之間的關系。
  5. By repeatedly undercutting his price, his competitions soon had him on the ropes

    競爭者們一再削價與他搶生意,很快就逼得他走投無路了。
  6. Analysis on ground surface deformation induced by undercutting under shallow overburden in tianjin metro

    天津地鐵淺埋暗挖隧道地表變形分析
  7. The analyse of sixianjiao channel current character and sanshui hydrologic station riverbed undercutting

    思賢?的水流特徵及三水水文站河床下切分析
  8. Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition

    首先對漸開面二次包絡理論進行了深入的探討,推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件,相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率;此外,還對磨齒后工件的齒面誤差進行了理論分析;並在理論基礎上編制了相應的計算機程序,自動生成接觸線族及嚙合界限線,對不同參數條件下的嚙合情況進行分析,可以使工藝條件達到最佳狀態;最後研究了磨齒裝置,設計了磨齒機的傳動系統。
  9. Nature made this den, a cave undercutting bluff of beautiful orange - beige sandstone

    這是個渾然天成的洞穴。山洞在一個淺桔色的砂巖峭壁之下。
  10. The blast of sublevel caving together with the blast of undercutting, crater opening and slot cutting are brought about successfully at same time in the practice of sublevel drilling and stope mining with nonelectric blast ignition system, and the productivity of mining is increased

    在分段鑿巖階段礦房法回採實踐中,用非電導爆管雷管起爆系統成功地實現了階段落礦爆破與拉底、辟漏、切槽爆破一次同步進行,提高了生產效率。
  11. After welding is complete, they shall be removed flush with the base metal without undercutting

    焊接完成後,應清除這些臨時部件至與母材金屬表面齊平,不得出現咬邊。
  12. On the railway line nuder normal major repair cycle, rm - 80 full section undercutting ballast cleaning machine has enough excavation ability in working condition, productivity can come up with it ' s design standard

    對于正常大修周期的線路上, rm80型全斷面道碴清篩機作業運行工況具有足夠的挖掘能力,作業效率基本上能夠達到其設計標準,這些在國外已經得到了充分的證明。
  13. Rm - 80 full section undercutting ballast claening machine is made by means of importing the technology from plasser & theuere austria under the way of combining the technology with trade. the machine is of the most advanced level in the world, and played an important role in speeding - up of railway main line in recent years

    Rm80型全斷面道碴清篩機,是鐵道部在1996年採用技貿結合方式,從奧地利plasser & theuere公司引進的全液壓驅動大型養路機械生產製造技術,並由鐵道部昆明機械廠製造生產的。該機械具有當今世界先進水平,並在近幾年鐵路干線提速中發揮了重要的作用。
  14. Criticalnumber tooth for no undercutting

    無根切臨界齒數
  15. Where transactions are “ lumpy ”, as in the commercial aircraft industry, the short - term profits from undercutting rivals are too big to resist

    但類似民用航空這種價格「奢侈」的行業,情形就不同了,其針對競爭對手降價帶來的短期利益之豐厚,實在令人難以抗拒。
  16. I ' m certain that our rival companies are undercutting by keeping their prices so low

    我敢肯定競爭公司把價格定得這么低是在挖我們的墻角。
  17. If, on the other hand, one firm has lots of spare capacity or lower costs than its competitors, it will find undercutting them hard to resist

    然而,從另一方面來看,如果某一個公司比其競爭對手擁有更多的剩餘產能或更低的成本,它會發現降價的誘惑仍然無法抵擋。
  18. The illegal exporters had been smuggling tin to neighbouring countries, where they sold it cheaply, undercutting the market by as much as $ 300 a tonne

    這些走私錫到鄰國,並且廉價賣出的非法冶煉公司每噸打壓了300美元。
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