A、A.single screw pump
B、B.double-screw pump
C、C.triple screw pump
D、D.centripetal pump
更多“In a （） the center screw is driven and the outer screws idle.”相关的问题
A、A.toward the inside of the bend B、B.toward the outside of the bend C、C.toward the center of the river just before the bend，then change course for the river's center after the bend D、D.in the river's center
A、shape of the vessel's underwater hull remains the same B、vessel's center of gravity shifts to the center of the vessel's underwater hull C、vessel's center of buoyancy shifts to the center of the vessel's underwater hull D、vessel's mean draft increases
A、found in the center(s) of the compass rose(s) B、indicated by isogonic lines C、found in a note on the chart D、All of the above
A、LCG B、transverse moment C、righting moment D、inclining moment
A、LCG B、transverse moment C、righting moment D、inclining moment
A、TCG B、transverse moment C、righting moment D、transverse free surface moment
A、A.TCG B、B.transverse moment C、C.righting moment D、D.transverse free surface moment
A、about which the vessel lists and trims B、which coincides with the center of buoyancy C、which，in the absence of external forces，is always vertically aligned with the center of gravity D、which is shown in the hydrostatic tables as VCB
A、aboat which the vessel lists and trims B、which coincides with the center of buoyancy C、which, in the absence of external forces, is always vertically aligned with the center of gravity D、which is shown in the hydrostatic tables as VCB
A、about which the vessel lists and trims B、which coincides with the center of buoyancy C、which，in the absence of external forces，is always vertically aligned with the center of gravity D、which is shown in the hydrostatic tables as VCB
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