Hollow Shape 空心分流
O-shape hollow metal ring 金属空心O形圈
hollow cylindrical shape 中空圆柱形
capillary shape hollow fibers 毛细管型空心纤维
hollow alumal shape 空腹铝型材
We can imagine that a lump of wet clay somehow ended up in the fire, dried out, hardened and formed a hollow shape; a shape that could hold things, in a tough material.
我们可以想象一块湿泥巴最后在火上烧制，烘干，变硬，形成一件形状中空的器皿，材料简陋，不过可以盛放东西。
I filled it with a full radius form and gave a depth to it to obtain the shape of a hollow tube.
我用一个全半径的形式把它填满，并给它取了一个深度，这样椅子看起来就有了中空管的形状。
Continuous casting of hollow tube is considered as a profound near net shape technology for pipe production.
空心管坯连铸技术被认为是管材生产更深层次的近终形制造技术。
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