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大横杆可用于设置在立杆内侧,其长度不能小于( )。 A.5跨B.跨C.3跨D.2跨



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ڲ,䳤ȲС( ) A.2B.3C.4D...
ڲ,䳤ȲС( ) A.2B.3C.4D.5ȷ𰸼ؽ ȷ B ޽ ϴ׾2016߿ģ 2015߿...
...ڲ,䳤ȲС3,ں͵( )...
ֹּܽܵĴڲ,䳤ȲС3,ں͵( ) A.3mB.4mC.5mD.6mȷ𰸼ؽ ȷ D ˿...
...ڲ,䳤ȲС( ) A.1B.2C.3...
ˮƽڲ,䳤ȲС( ) A.1B.2C.3D.4ȷ𰸼ؽ ȷ D ޽ ...
ȫڰϰ(4)
ȫڰϰ(4) (ڰ ʩȫ) һѡ 1.ڲ,䳤ȲС__ A. 2 B. 3 C. 4 D. 5 2....
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A.50Nm B.60Nm C.65Nm D.80Nm 2ˮƽӦڲ,ȲӦС(B) A.2 B.3 C.4 D .5 ,Ӧ...
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A30mm C50mm B40mm D60mm 6 ۼʽֹּܽˮƽڲ, 䳤ȲС (C) 1 A1 C3 B2 D4 ...
ּƪ(249)
ּƪһѡ( 91 ) ۼʽֹּܽˮƽڲ,䳤Ȳ С(C) A.1 B.2 C.3 D.4 ۼʽֹּܽҵ...
ҵԱȫ
A.0.5m B.1m C.1.5m D.2m 4.䡢...A.1 B.2 C.3 D.4 19.ּҵ˲...36.ڲ,䳤ȲС(B ) ...
2015-2016갲ȫ꾡..._ͼ
A.0.5m B.1m C.1.2m D.1.8m 18.ȳ...A.1 B.2 C.3 D.4 19.ּҵ˲...36.ڲ,䳤ȲС(B ) ...
ּܹ̿
A50 B55 C 60 D65 5ְɲ...Ӧ(B ),ȲӦС()...ȲӦС 3 ; 2 ˮƽ˽ӳӦ...
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