maximum permitted concentration造句

例句与造句

1. At the time, it set a figure for the maximum permitted concentration of radioactivity in the mushrooms.
2. The maximum permitted concentrations in non-ppm ( except for cadmium, which is limited to 0.01 % or 100 ppm ) by weight.
3. It's difficult to find maximum permitted concentration in a sentence. 用maximum permitted concentration造句挺难的