Results The sanitaryprotection of water sources was greatly strengthened after the water improvement project.
结果与改水前比较,水源的卫生防护状况有很大改善;
2
Objective To explore the effect of water improvement and the sanitaryprotection of water sources in Linyi City.
目的了解临沂市改水效果及水源的卫生防护状况。
3
Women are extremely unlikely to switch their brand of sanitaryprotection after adolescence and European taste in alcoholic drinks tends not alter much beyond 35.