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单选题
从单吊杆受力计算公式中知,千斤索张力T()。
A

与滑轮数m及L/H无关

B

与滑轮数m有关,与L/H无关

C

与滑轮数m及L/H有关

D

与滑轮数m无关,与L/H(a/H)有关


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