【单选题】A horizontal line 450mm long and 25mm wide cuts through the loadline disc. It is called the__.
【判断题】纵断面高于水平线时取正值,低于水平线的面积取负值。The vertical section is positive when it is higher than the horizontal line, and the area below the horizontal line is negative.
【单选题】The angular movement of a vessel about a horizontal line drawn from its bow to its stern is ().
【单选题】A horizontal line cuts through the loadline disc. It is called the _____.
【单选题】A horizontal line 450-mm long and 25 mm wide cuts through the load line disc. It is called the ___.
【简答题】A vertical angle is an angle in a vertical plane which referenced to a horizontal line by plus or minus angles, or to a vertical line from the zenith direction.
【单选题】A disk with a horizontal line through its center,equivalent to the summer load line,is called the().
B.
maximum allowable draft mark
【单选题】A disk with a horizontal line through its center, equivalent to the summer load line, is called the().
B.
maximum alloable draft mark