Results show that the foam height is decreased and the foam life is shortened with increasing MnO concentration but the incubation period is lengthened.
应用X射线装置观测了碳饱和铁水与含MnO的含钛高炉渣反应过程中渣的起泡行为 ,测定了熔渣的起泡高度、泡沫寿命、孕育期等参数·结果表明 :随MnO含量增加 ,起泡高度下降 ,泡沫寿命缩短 ,孕育期增长 ,温度是影响泡沫渣的重要因素·当渣中w (MnO)为 5 %、温度为145 0℃时 ,高钛渣将不会产生泡沫现象
A quarter of the workers are women.
四分之一的工人是女工。
Being one of four equal or equivalent parts.
四分之一的四个相等或相当部分之一的
What is the number that is one half of one quarter of one tenth of 400?
（以下哪个数是400的十分之一的四分之一的二分之一？）
Only a quarter of them are independent,
仅有四分之一的老人经济上是独立的，
A quarter of young cohabiting couples are unmarried.
四分之一的青年同居伴侣是未婚的。
About a quarter of the world drives on the left,
世界上有四分之一的国家左侧行驶，
She gave me a quarter of the cake.
她把四分之一的蛋糕给了我。
There'll be four of us going so we'll each pay a fourth.
这样，我们每个人付四分之一的费用。
What's the quarter of 96?
96的四分之一是多少？
What's the quarter of sixteen?
十六的四分之一是多少？
I would like a quarter of a pound(1/4 1b)of tea please.
我要买四分之一磅（四英两）的茶叶。
One fourth of the distance between any two of the32 divisions of the compass.
四分之一罗盘上三十二个方位中任何两个之间的距离的四分之一
Half a semitone.
四分之一音二分音符的一半
One fourth of the period of the moon's revolution around Earth.
阴历月的四分之一月亮围绕地球公转一周的四分之一
A play in which the quarterback bootlegs.
四分卫假传进攻四分之一场运送球的比赛
B: Yes, I'd like a quarter pounder, please.
是的，我要一个四分之一磅肉的汉堡。
One fourth of something, especially of some weights and measures.
四分之一某物的四分之一，尤指某些重量单位及度量单位的
To mark or place(holes, for example) a fourth of a circle apart.
标示区域的四分之一将（如孔）标在或定在相距圆周的四分之一处