For every yard of mast height,the body end needed to be one inch in diameter.

问题描述:

For every yard of mast height,the body end needed to be one inch in diameter.

桅杆高度每码要求(桅杆)杆体顶端的直径为一英寸.每码高度跟顶端直径有什么关系呢。。正比关系:桅杆每增加一码,要求桅杆顶端的直径相应增加一英寸。