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Don to connect long-slender elements together with the use of the above
Don to connect long-slender elements together with the use of the above
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机译:不要将以上细长元素连接在一起
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摘要
For the purpose of producing a unit from the two long and narrow objects which can be placed in an upright position, the first and second directions (11,12) form a fixed angle in relation to each other.
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