common four ring 中文意思是什麼

common four ring 解釋
前霧矍眼蝶
  • common : adj 1 共通的，共同的，共有的。2 公眾的；公共的。3 普通的，通常的，尋常的，平常的。4 平凡的，通俗...
  • 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 〉 ...
  • ring : n 1 圈，環，輪；戒指，指環，耳環，鼻圈，鐲子（等）；【運】吊環。2 輪狀物；【植物；植物學】年輪；...
  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。
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