当下胚轴穿出种皮约1—2毫米时,生毛细胞的外壁向外突出,形成下胚轴毛.When hypocotyl emerges out of the seed coat for 1 - 2 mm.主要用于高档船舶的船壳 、 集装箱外壁和火车、汽车的面漆使用.For super ship hull, container exteriors, train and car.风暴像巨大的攻城锤一样连续击打着灯塔的外壁.The storm hammered ...
沿河筑了防护墙以防洪水.The wall was built along the river in case of floods.海鸥在她面前的护墙上摇摇摆摆地走着, 船只从她身边驶过.Seagulls teeter on the parapet in front of her, boats go by.如果提供了保护墙, 它们应用不可燃材料建造.If protective walls are provided, they shall ...