分数单位

教学难点：认识分数单位，理解单位“1”的含义。

Teaching difficult points : to know the units of fraction and understand the essence of the whole .

在游戏运动比赛中计算分数的单位。

The unit of counting in scoring a game or contest .

得到了相应条件下的镉离子残留量、吸附镉离子质量分数、单位试样吸附镉的质量。

The remaining quantity of Cadmium as in water , the adsorption rate of Cadmium and the Cadmium quantity adsorbed by a unit of specimen weight were recorded separately .

在所比较的左心室功能指标中运动员组的搏出量和心输出最大于非运动员组，心率、射血分数和单位心肌射血则运动员组小于非运动员组。

In the indexes of left ventricular function , the figures of stroke volume and cardiac output in athletic group , while the figures of heart rate and ejection fraction were lower than those in non - athletic group .

真分数表成单位分数和的一类特解

On the representation of true fractions with unit fractions sum

甘油三酸酯质量分数的表述单位为百分比。

Triglyceride mass fractions are expressed as percentages .

在一定的冷凝温度和蒸发温度下，随着混合制冷剂中CO2的质量分数增加，循环单位制冷量和压力比都增大；

And when giving the evaporating temperature and condensing temperature , the increasing mass fraction of CO2 enhance refrigerating output by unit mass refrigerant and compression ratio .