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??r??{ `9O??P??@regulating knob of fuel pressure 燃油压力调节钮
0~8u6B F??]reserve buoyancy 储备浮力 residuary resistance 剩余阻力resultant
9@??\\ k%R5b2X??b r O4u
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力
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&K??\\4v&o0K |(^??Treverse frame 内底横骨 Reynolds number 雷诺数 right-handed propeller 右旋进桨righting
arm
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正
力
臂
，
恢
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