The term parts per million(ppm) was widely used but frequently led to misinterpretation . 廣泛使用百分之幾(ppm)表示結(jié)果,但常常引起誤解。
Concentrations of 10 ppm can be endured for only a few minutes and cause profuse lacrimation in all people . 10ppm的濃度,只需幾分鐘,就會使所有的人流淚不止。
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 . 如果一個尺段偏離基線總方向的角度相應(yīng)于24米距離上的10毫米,則誤差為0110-6。
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濃度的一氧化碳的瓦斯檢驗員中,發(fā)現(xiàn)了這種智力行為的衰退。
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幾小時,會引起各種癥狀,如刺激性食欲不振,頭疼,眩暈和情緒不穩(wěn)定等。
Modules using the activestate ppm package manager is difficult 模塊是困難的。
Assessment of nonconforming levels in parts per million 百萬分之幾ppm不合格指標(biāo)的估價
50 ppm simplex , 50 ipm duplex first page out time 單頁打印每分鐘50頁,雙頁打印每分鐘50印