音标与读法

这里为大家介绍下ppm 是什么意思，希望能帮助到各位朋友。

中英文翻译

p.p.m. ＝parts per million 百万分率。

例句与用法

1.The term parts per million(ppm) was widely used but frequently led to misinterpretation .

广泛使用百分之几（ppm）表示结果，但常常引起误解。

2.Concentrations of 10 ppm can be endured for only a few minutes and cause profuse lacrimation in all people .

10ppm的浓度，只需几分钟，就会使所有的人流泪不止。

3.If a bay is inclined to the general line of the base at an angle of 10 mm in 24m, the error will be 0. 1 ppm .

如果一个尺段偏离基线总方向的角度相应于24米距离上的10毫米，则误差为0110-6。

4.These decrements in intellectual behavior were found in firemen exposed to carbon monoxide at 100 ppm for varying periods of time .

在不定期地暴露于100ppm浓度的一氧化碳的瓦斯检验员中，发现了这种智力行为的衰退。

5.Daily inhalation of 45 to 100 ppm for several hours has been associated with symptoms of irrifability, anorexia, headache, giddness, and emotional instability .

每天吸收45至100ppm几小时，会引起各种症状，如刺激性食欲不振，头疼，眩晕和情绪不稳定等。

6.Modules using the activestate ppm package manager is difficult

模块是困难的。

7.Assessment of nonconforming levels in parts per million

百万分之几ppm不合格指标的估价

8.50 ppm simplex , 50 ipm duplex first page out time

单页打印每分钟50页，双页打印每分钟50印

9.20 ppm a4 lef , duplex , optional

每分钟20页a4幅面横向进纸，双面打印

10.6 ppm a4 lef , duplex , optional

每分钟6页a4幅面横向进纸，双面打印

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