保持放松、直立的坐姿。Sit in a relaxed upright posture.他那直立的头发和咧着嘴的笑容使他更像个厚脸皮的家伙。His cheeky chappy image is reinforced by the spiky hair and the wide grin.荒原上一些直立的石块是古老宗教的遗迹.Some upright stones in wild places are the vestige of anc...
方法:采用液体两倍稀释法和药物交互作用定量法.METHODS Double dilution and quantitative method for the drug mutual action were used.目的: 利用显微定量法测定黄柏质量.Objective : To determine the quality of cortex phellodendri chinensis by microscopic quantitat...