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是Surface的抽象接口,操纵surface的控制器。


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lockCanvas
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考题 The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel's displacement into the ______.A.Transverse free surface correction for the vesselB.Sum of the vertical moments of the vesselC.Sum of the longitudinal free surface moments of the vesselD.Longitudinal centerline of the vessel

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考题 surface defect detector的中文意思是()。

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