知识贝壳
知识贝壳
所属栏目：英汉烟草科技
Topping,a common practice in tobacco production,is an operationof removing terminal inflorescence and sometimes several top leaves in order to redirect the energy for leaf development to a desired physical andchemical property. Subsequently,because of the ......（本文共 2109 字 ） [阅读本文] >>