天仙子(Hyoscyamusniger)胚珠为薄珠心胚珠.The ovule of Hyoscyamus niger is renuinullceate.阿托品: 有毒的结晶性生物碱,从茄类植物, 特别是埃及天仙子提炼而得.Atropine : Anticholinergic drug. A poisonous, crystalline alkaloid derived from certain nightshade plants, e...
One in five young adults was struggling with everyday mathematics.1/5的年轻人做日常的数学计算都费劲。Many of the differences in everyday life remain.日常生活中的许多差异仍然存在。She watches television to relieve the monotony of everyday life.她天天靠看电视来...
He sagged wearily back in his chair.他疲倦地瘫坐到椅子上。Morrison took the news badly and from then on his spirits noticeably sagged.这消息对莫里森打击很大，从那以后，他明显萎靡不振。His upper lip was flat, but the lower one sagged.他上唇扁平，下唇耷拉。There were p...
Countersunk rivet symbol. Use in conjunction with other rivet ends.埋头铆钉符号. 与其他铆钉端点结合使用.Side view of raised countersunk slotted screw with adjustable thread length.螺纹长度可调整的半埋头一字槽螺钉的侧面图.Side view of countersunk posidriv sc...