药物
发表于 2025-3-23 12:21:04
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Concrete
发表于 2025-3-23 17:04:56
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Habituate
发表于 2025-3-23 18:23:30
Application of the Separation Theory,of cast structures based on the separation theory. In brief, I have discussed the exceedingly simple principle that in order to obtain equiaxed crystals, one should ascertain where they form and then cause many crystals to form there and separate and precipitate. If one wants columnar crystals, one
Ringworm
发表于 2025-3-24 01:42:00
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Comprise
发表于 2025-3-24 05:55:08
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avenge
发表于 2025-3-24 10:01:02
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危机
发表于 2025-3-24 13:29:04
Introduction,Over the past two decades I have adopted the method of in-situ observations of the solidification phenomenon in metals in order to continue research into the questions of how molten metal solidifies within the mould and how to control the solidification structure of cast metals.
obtuse
发表于 2025-3-24 16:18:19
The Formation of Cast Structures,The ingot in Fig. 1.1(a) is a 99.8% Al ingot made by pouring molten Al into the opening of a box-type metallic mould as shown in Fig. 1.2 and solidifying it. The depression in the head was formed by shrinkage when the ingot solidified, and this is referred to as a shrinkage pipe.
流浪
发表于 2025-3-24 22:44:07
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逗留
发表于 2025-3-24 23:45:36
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