A.130毫米
B.140毫米
C.200毫米
D.220毫米
A.130毫米
B.140毫米
C.200毫米
D.220毫米
A.27.1
B.29.4
C.30
D.32
A.λn,b越大,稳定性越好
B.λn,b越小,稳定性越差
C.λn,b≤0.6时,可不计算稳定性
D.λn,b对稳定性无影响
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602557778.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602574380.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602596213.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/170538860266277.png">
A.$tw/ho$
B.$tw/2ho$
C.$ho/tw$
D.$2ho/tw$
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602402731.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602422259.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602440528.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240116/1705388602468158.png">
A.2:3
B.3:4
C.1:√2
D.1:2
A.100mm
B.250mm
C.150mm
D.300mm
A.试拧和终拧
B.初拧和终拧
C.预拧和终拧
D.冲钉连接和终拧