焊接组合梁腹板中，布置横向加劲肋为防止（）引起的局部失稳；布置纵向加劲肋为防止（）引起的局部失稳。

腹板间隔加劲肋常用布置方式有（）。

通常情况下，钢梁翼缘板和腹板的局部稳定都是通过设置加劲肋来保证。

规范对焊接组合梁腹板加劲肋的布置有哪些要求 ?

焊接工形截面钢梁设置腹板横向加劲肋的目的是(    )。

梁的纵向加劲肋应布置在（）。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

梁的支承加劲肋应设在（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。