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don't to connect långsmala elements, together with the use of the said don
don't to connect långsmala elements, together with the use of the said don
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机译:不要连接l u00e5ngsmala元素,也不要使用所说的don
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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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