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。

youdao

Canvas is painted in light colors, thrilling stroke of the brush and linear drawing lead us to romantic human vision that have no concrete body, but embrace lucidity of sky, water and ground.

浅色、颤抖的笔触和线条把我们带到的浪漫的幻想之中。虽然身体不完整，但是它却拥抱着明朗的天空、水和土地。

youdao