Laboratory and field observation on the mollusccidal effect of a new formula of sodium pentachlorophenate on Oncomelania hepensis from mountainous area in Guangxi是什么意思_Laboratory and field observation on the mollusccidal effect of a new formula of sodium pentachlorophenate on Oncomelania hepensis from mountainous area in Guangxi在線翻譯_英語_讀音_用法_例句