Combination of full grain Suede leather and 1200 denier nylon upper.头层全粒面起毛牛皮和1200丹尼尔尼龙网布联合构成的靴面.Manufacturers of high tenacity and fine denier multifilament polypropylene yarns.制造高韧性和细旦丙纶复丝纱线.Combination of full grain l...
Whenever a plant responds to applied , i . e . , unbalanced, applications of auxin, ethylene is produced.当一植物对不平衡地施用生长素起反应时, 总是产生乙烯.The centre of pressure moves rearward and the aeroplane becomes unbalanced.气压中心后移使飞机失去平衡...