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From the perspective of convex pipe stress in the cap from hemispherical tube cap.
从受力角度看凸形管帽中从半球形管帽。
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Replace the cap of the tube after use.
用后将药管盖上盖子。
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Making tube sheet by cap.
制作管帽均采用板材。
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Making tube sheet by cap.
制作管帽均采用板材。
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