The control of superficial scald mainly consists of chemical control and non-chemical control.
虎皮病的防治主要包括化学和非化学防治。
2
The paper introduces how to give a course of chemical experiments around us for students in non-chemical subjects with less cost.
文中介绍了如何以较少的投入，从生活入手，安全地为非化学类本科生开设“化学与生活实验”素质课的实践。
3
Our non-chemical sunscreen, sunscreen stick formula with Nano UV filter for harmful ultraviolet rays scattering and reflection, provide highly effective broad-spectrum UVA-UVB sun protection.