How many people know that 16th, September of every year is the International Ozone Layer Protection Day?
有多少人知道,每年的九月十六日是国际臭氧层保护日?
This paper introduces about the cleaning technology and non-ODS cleaning materials of the electronics components, resulting in protection of the ozone layer.
本文介绍电子元件的清洗工艺与非耗臭氧清洗材料的选择,以便达到保护臭氧层的目的。
The first chapter introduces the related treaties of the field of the ozone layer protection.
第一章介绍了臭氧层保护领域的有关条约。
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