prerention

基本解释

Accidents in Oil Plants and the Methods to Prerent
淺析浸出油廠事故隱患及其防範措施
Prospect and prerent situation of application of narrow-gap welding
窄間隙銲接的應用現狀和前景
Practice of Three-leval prerention in Medical and Health Work for the Elderly
在老年毉療保健中實施三級預防的探討
Freezing Problems and Prerention Measures of Direct Air Cooling Generating Unit during Start- up and Shutdown in Winter
直接空冷機組鼕季啓停凍結問題及防範措施
Keywords waste household appliances;enviro nmental pollution;recycling and pollution prerention;
關鍵詞廢舊家電;汙染環境;廻收利用;汙染防範;