four ball 中文意思是什麼

four ball 解釋
四球比洞賽
  • four : n 1 四人小組；（套在車上的）四匹馬。2 四的記號；（骰子的）四點；（鐘點的）四時；四歲。3 〈pl 〉 ...
  • ball : n 鮑爾〈姓氏〉。n 1 球；球狀物。2 球戲，（特指）棒球；【棒球】壞球 （opp strike） 3 【軍事】子彈...
  1. 1. 5 m in diameter ) were dispersed in n46 engine oil with different concentrations using ultrasonic respectively in order to study their tribological properties. the tribological experiments were carried out by mq - 800 four - ball tribometer and mm - 200 ring - on - block tribometer, in which extreme pressure properties, wear scan diameter, friction coefficient and wear volume loss were measured. the results showed that oil containing mos2 nanoparticles had a better wear resistance, friction - reducing and extreme pressure than the oil containing common mos2

    將上述制備得到的納米二硫化鉬顆粒和普通二硫化鉬粉末（ 1 . 5 m ）以不同濃度分散在n46機械油中，在mq - 800四球摩擦磨損試驗機上考察它們的最大無卡咬負荷（ p _ b值） 、耐磨性能和摩擦系數；並在mm - 200摩擦磨損試驗機上，通過環?塊摩擦副，比較和分析了它們的摩擦學特性。
  2. Specification for four - ball friction testing machines

    四球摩擦試驗機.技術條件
  3. Verification regulation of four - ball friction testing machine

    四球摩擦試驗機檢定規程
  4. Petroleum and related products - determination of the extreme - pressure and anti - wear properties of fluids - four ball method european conditions

    石油及其產品的試驗方法. bs 2000 - 239 :流體的極限壓力和耐磨特性測定.四球法
  5. Petroleum and related products - determination of the extreme - pressure and anti - wear properties of fluids - four ball method european conditions iso 20623 : 2003 ; german version en iso 20623 : 2003

    石油和相關產品.液體的極限壓力和抗磨性能的測定.四
  6. Test method for determination of the coefficient of friction of lubricants using the four - ball wear test machine

    用四球磨損試驗機測定潤滑油摩擦系數的試驗方法
  7. Standard test method for determination of the coefficient of friction of lubricants using the four - ball wear test machine

    用四球磨損試驗機測定潤滑劑摩擦系數的標準試驗方法
  8. Petroleum and related products - determination of the extreme pressure and anti - wear properties of fluids - four ball method european conditions

    石油和相關產品.液體的極端壓力和耐磨性能的測定.四球法
  9. In this paper, the structure characteristics and lubricating theory of teflon is studied, and tribology capability of teflon is researched on four - ball machine, and the serviceability and development of teflon used as lubricant additive is discussed

    摘要研究了固體潤滑劑聚四氟乙烯的結構特徵和潤滑原理，使用四球摩擦試驗機研究了聚四氟乙烯的摩擦學性能，探討了聚四氟乙烯作為潤滑添加劑的應用現狀與發展前景。
  10. Load - wear index an index of the ability of a lubricant to prevent wear under applied loads as determined in the four - ball ep tester

    負荷-磨損指數是衡量潤滑油在四球極壓試驗中所施加的負荷下所表現出的抗磨能力的一項指數。
  11. The article developed the self - compensation repairing lubrication additives which endowed with new function to old lubrication oils according to the theory of self - compensation repairing theory by aided financially from china nature science fund ( ratification number : 59975039 ). the first, the article studied the tribological effect of several kinds of lubrication additives by single - phase, two - phase and three - phase mixture by four - ball machine. the article studied the effect of the mixture ratio and the additive concentration on tribological effect - antifriction, wear - resisting and bearing capacity

    論文首先以四球法，對新合成的幾種潤滑添加劑的單相和雙相、三相復配后的摩擦學特性進行了較系統地研究，研究了復配比例和添加量等對其摩擦學性能?減摩、耐磨、承載性能的影響，在此基礎上優選了es12和esm122兩種潤滑添加劑，對其進行了較系統的磨損自補償修復效應及其摩擦學效應研究和對四種成品潤滑油的適應性研究，並對摩擦表面的自補償膜進行了紅外光譜分析。
  12. Series 774xdcda contains two independently operating check valves located between two resilient seated shutoffs with four ball valve type test cocks and a hydraulically balanced metered bypass line to detect low flows

    系列774xdcda包含兩個獨立運行的止回閥，位於兩個彈性閥座關閉閥之間，並配置四個球閥型測試旋塞，以及一個液壓平衡儀表旁路管線用於檢測低流量。
  13. Wear preventive characteristics of lubricating fluid four - ball method, method of test for

    潤滑液防磨性試驗方法
  14. Standard test method for wear preventive characteristics of lubricating fluid four - ball method

    潤滑液防磨損特性的標準試驗方法
  15. Test method for measurement of extreme - pressure properties of lubricating fluids four - ball method

    潤滑液極壓特性測量的試驗方法
  16. Standard test method for wear preventive characteristics of lubricating grease four - ball method

    潤滑脂耐磨特性的標準試驗方法
  17. The tribological characteristics of ultrafine ws2 powders added in engine oil have been investigated by four - ball machine test, and compared with chloroparaffins ( t302 ) and molybdenum disulphide ( mos2 ), and meanwhile we have analyzed the tribochemical species of the worn surface by means of x - ray photoelectron spectroscope ( xps ), to research the lubricating mechanism of ws2

    摘要採用四球摩擦實驗機對二硫化鎢超細粉末在發動機油中的摩擦學性能進行了研究，並與添加劑氯化石蠟和二硫化鉬進行了比較，同時用x射線光電子能譜儀對磨痕表面元素進行分析，以探討二硫化鎢的潤滑機理。
  18. Test method for wear preventive characteristics of lubricating grease four - ball method

    潤滑脂耐磨損特性試驗方法
  19. Standard test method for measurement of extreme - pressure properties of lubricating grease four - ball method

    潤滑脂極壓性能的標準試驗方法
  20. Standard test method for measurement of extreme - pressure properties of lubricating fluids four - ball method

    潤滑油極壓特性測量的標準試驗方法
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