问题
单项选择题
The catenary in a towline is().
A.a short bridle
B.the downward curvature of the hawser
C.another name for a pelican hook
D.used to hold it amidships
答案
参考答案:B
The catenary in a towline is().
A.a short bridle
B.the downward curvature of the hawser
C.another name for a pelican hook
D.used to hold it amidships
参考答案:B