若弯心直径为2.5d,平直部分要求有3.5d长度,那么一个180。弯钩应增加的长度为 发布时间:2017-07-16 10:01 │ 来源:www.tikuol.com 题型:填空题 问题: 若弯心直径为2.5d,平直部分要求有3.5d长度,那么一个180。弯钩应增加的长度为______d。
题型:填空题 Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?()A.Crossing the spring linesB.Slacking all forward running lines while keeping all after running lines tautC.Doubling up on spring or breast linesD.Slacking bow and stern lines 查看答案