In which voyage, between two points, is the rhumb line distance not approximately the same as the great circle distance?（）.

主罗经与方位分罗经安装，下列说法正确的是：（）

The merchant undertakes that no claim or allegation shall be made against any servant，agent or subcontractor of the carrier which（）to impose upon any of them or any liability whatsoever in connection with the goods.

用罗经点划分方向，相邻两罗经点间的夹角为（）。

地磁北极与罗经北极之间的夹角为（）。

当磁罗经指北针的磁针静止后，其N端（通常都有标志）所指的方向即为罗经的北方向。（）

对磁罗经液体的粘度要求，一般为（）时仍不结冰，且在（）之间其粘性不显著改变。

The line which connects the points of zero magnetic dip is（）.

Line l passes through the origin and is perpendicular to the line given by the equation 2x + y = 8. Which of the following points is NOT on line l?

磁罗经自差Dev等于（）。

当船位在北纬35度，东经125度处时，陀螺罗经主轴指北端的视运动方向应（）。

磁罗经系数只与（）因素有关。