fraction n. 1.小部分,碎片,片断。 2.一些,一点儿。 3.【化学】分馏,分层,分级。 4.【宗教】圣餐面包分切式。 5.【数学】分数。 a common [vulgar] fraction 普通分数。 a compound [complex] fraction 繁分数。 a mixed fraction 带分数。 a decimal fraction 小数。 a proper [improper] fraction 真[假]分数。 a fraction closer 稍微靠近一点。 by fractions 有余数的,不完全的。 crumble into fractions 碎成片片。 in a fraction of a second 一秒钟的若干分之几,一转眼的工夫。 not a fraction of 一点也没有。 not by a fraction 一点也不。 to a fraction 〔口语〕道道地地,百分之百地。
For a given media , and at a constant total pressure and temperature , the partial pressure of oxygen is proportional to oxygen mole fraction 对一个给定的媒介,在恒定的总压和温度下,局部压力与氧的克分子数成比例。
Standard specification for virgin poly glycolide and poly glycolide - co - lactide resins for surgical implants with mole fractions greater than or equal to 70 % glycolide 摩尔分数大于或等于70 %乙二醇的外科植入物用原聚乙二醇和聚乙二醇聚乳酸树脂标准规范
In addition , the premelting mole fraction of the surface of these two metals is fitted with the corresponding temperature to obtain a relational expression which is able to forecast the disordering progress of this surface 另外,通过将该面预熔摩尔分数对温度进行拟合发现,可以近似地预测( 001 )面的预熔过程。