Acting principle factors which affect the outturn of sand including sand age and site index as parameter, prediction model H=a1D a2A a3si a4,V=a1D a2H a3 on stand outturn of Japanese larch was established by using multi-factor comprehensive descrip.是什么意思_Acting principle factors which affect the outturn of sand including sand age and site index as parameter, prediction model H=a1D a2A a3si a4,V=a1D a2H a3 on stand outturn of Japanese larch was established by using multi-factor comprehensive descrip.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句