The mechanism, development, testing and field test of EP DRA are introduced.介紹了EP系列減阻劑的作用機理 、 研制方法 、 中試生產和現場實驗的概況.The EP antiwear property is different that it contains different additives.不同的添加劑配伍,聚脲潤滑脂的極壓抗磨性也不一樣.INTECH...
Objective To evaluate the diagnosis , treatment and prognosis of renal chromophobe cell carcinoma ( RCCC ).目的提高腎嫌色細胞癌的診治水平.On the right a chromophobe carcinoma, and on the left, a multilocular cystic renal cell carcinoma...
The television was on, tuned to what Clarence called " that bloody soap opera.電視開著,播的是克拉倫斯稱之為 “ 混帳肥皂劇”的節目.He was arrested last October still carrying a bloody knife.去年10月他被捕時，身上還帶著一把血跡斑斑的刀。Yulka's fingers were blood...
Perseverance is failing nineteen times and succeeding the twentieth.十九次失敗,直到第二十次才獲成功,這就是堅持。Fortitude indefatigability perseverance persevere tenacity.不屈不撓.With tact and perseverance he inveigled her into becoming his law...