A、the horizontal component of the permanent magnetism
B、deviation caused by the vessel's inclination from the vertical
C、induced magnetism in the horizontal soft iron
D、induced magnetism in the vertical soft iron
更多“A single vertical magnet placed underneath the compass in the binnacle is used to compensate for（）.”相关的问题
A、two balls in a vertical line B、two diamonds in a vertical line C、a single black ball D、no shape is shown during the day
A、a single white light forward B、two masthead lights in a vertical line C、two towing lights in a vertical line D、two all-round red lights where they can best be seen
A、the single skin side shell and the inner bottom B、deck strips，hatch covers and coamings C、the vertically corrugated transverse watertight bulkheads D、the single skin side shell between topside and hopper tanks，and the cross deck strips，hatch covers and coamings
A、Single stage or multistage B、High pressure or low pressure C、Open or close coupled D、Horizontal or vertical
A、The soft iron spheres on the arms of the binnacle B、Magnets placed in trays inside the binnacle C、A single vertical magnet beneath the compass D、The Flinders bar
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