航海英语部分词汇解释

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1、Angleofloll负稳性初倾角，负稳性横倾角，失稳横倾角AshiphavingaverysmallnegativeinitialmetacentricheightGMneednotnecessarilycapsize.Thissituationproducesanangleofloll.初稳性高度为一个非常小的负值的船舶不一定倾覆。这种情况产生负稳性横倾角。Astheangleofheelincreases,thecentreofbuoyancywillmoveoutstillfurthertothelowside.Ifthecentreofbuoyancy

2、movesouttoapositionverticallyunderG,thecapsizingmomentwillhavedisappeared.Theangleofheelatwhichthisoccursiscalledtheangleofloll.Itwillbenoticedthatattheangleofloll,theGZiszero.随着横倾角增大，浮心将缓慢向外移，进一步移到较低的一舷。如果浮心向外移至船舶重心的正下方某一位置，倾覆力矩将会已经消失。这时的横倾角称为负稳性横倾角。将会注意到在负稳性横倾角处静稳性力臂为0。【美国原题】1.Anup

3、rightvesselhasnegativeGM.GMbecomespositiveattheangleoflollbecausethe______.A.freesurfaceeffectsarereducedduetopocketingB.KGisreducedasthevesselseekstheangleoflollC.effectivebeamisincreasedcausingBMtoincrease有效船宽增大导致BM增大[GM=KB+BM-KG，如果(KB-KG)不变而BM增大，从而导致GM增大并转为正值]。D.underwatervolumeof

4、thehullisincreased2.TheangleoflollisastabilitytermwhichappliestoafloatingMODUwith______.MODU:mobileoffshoredrillingunit移动式近海钻井平台A.off-centerloadingB.stiffcharacteristicsC.excessivepitchorrollD.negativeinitialstability3.AMODUisinclinedatanangleofloll.Intheabsenceofexternalforces,theri

5、ghtingarm(GZ)is______.rightingarm(GZ)复原力臂，也称为静稳性力臂A.positiveB.negativeC.zeroD.vertical4.AfloatingMODUwithaninitialnegativemetacentricheight______.A.willcapsizeB.willinclinefurtherC.maylieatanangleoflollD.maybeinitiallylevel5.WhenafloatingMODUinclinestoanangleslightlygreaterthantheang

6、leofloll,shewill______.A.capsizeB.inclinefurtherC.floptotheothersideD.returntotheangleofloll6.WhenafloatingMODUinclinestoanangleslightlylessthantheangleofloll,shewill______.A.capsizeB.inclinelessC.floptotheothersideD.returntotheangleofloll7.Atanangleofloll,thecapsizingmomentis______.

7、capsizingmoment倾覆力矩A.maximumB.negativeC.positiveD.zero8.Atanangleofloll,therightingarm(GZ)is______.A.maximumB.negativeC.positive,butreflexiveD.zeroLiftboat多功能工程船Aliftboatisaself-propelled,self-elevatingvesselwitharelativelylargeopendeckcapableofcarryingequipmentandsuppliesinsupportof

8、variousoffsh