On the contrary, it is likely that paying employees by the brush will lead to lower quality rather than better quality brushes.
相反，很可能计件付酬这一做法将导致低质量的而非高质量的刷子。
Objective: To investigate the changes of the activities of urine brush border enzymes in lead exposed workers and their significances.
目的：探讨铅接触者尿绒毛膜酶活性的变化及其意义。
The tooth brush has a replaceable tooth cleaning bar and convenient use, and can lead the brush head to be connected with the brush handle according to using conditions.
本实用新型的牙刷可以更换洁牙棒，且可根据使用情况连接刷头与刷柄，使用方便。
The tooth brush has a replaceable tooth cleaning bar and convenient use, and can lead the brush head to be connected with the brush handle according to using conditions.
本实用新型的牙刷可以更换洁牙棒，且可根据使用情况连接刷头与刷柄，使用方便。
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