不舒服
Conversion of KG/hr to ppm - Control.com - Forum for Automation Professionals「爸爸,」小兒子說,「我今天可不可以留在家裡?我覺得不舒服。」 「你覺得什麼地方不舒服?」爸爸問道。 小兒子回答:「學校。」You have not given enough information to help you. For example: 1. What units are you referring to by "ppm"? Parts per million, pounds per minute? 2. You have not told us how much Benzene there is in the off gas. 3. If ppm refers to parts per million, ppm...
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