sealing and handle密封处理 双语例句1Independent temperature control for each sealer to make the best sealing and handle a wide variety of flexible packing material. 各封口温度独立控制，适合多种包装材料，并且封口美观牢固。 2A pop-top seal cover is composed of a mounting with a rib, an upper cover, a sealing gasket, a central axis and a handle. 易拉罐密封盖由带有凸棱的底托。上盖。密封垫。中轴和把柄五部分组成。