航海英语最新阅读

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1、航海英语最新阅读Passage1-01Theaxialthrustofthepropelleristheforceworkinginaforeandaftdirection.Thisforcecausestheshiptomoveaheadthroughthewaterortogoastern.Becauseofhershape，ashipwillmoveaheadthroughthewatermoreeasilythangoingastern.Thetransversethrustisthesidewaysforceofthepropel

2、lerasitrotates.Thetransverseeffectofthepropellerbladesatthetopnearthesurfaceofthewaterisnotstrongenoughtocounteracttheoppositeeffectofthelowerblades.Forright-handedpropellersthiscantstheship'ssterntostarboardandherbowtoport，whentheshipisgoingahead.Theeffectissmallandcanbec

3、orrectedbytherudder.Whentheenginesareputastern，theeffectistheoppositeandthesterncantstoport.Thiseffectisstrongerandcannoteasilybecorrected.Vesselswithleft-handedpropellersbehaveintheoppositeway.螺旋桨的轴向推力是作用在在船头和船尾方向的推动力。这种力量使船得以在水中前进或后退。因为其形状，船舶在水中向前迈进更易于后退。横向推力是螺旋桨旋转时产生的横向

4、力。螺旋桨顶部水面附近的叶片所产生的横向效应并未强大到足以抵消螺旋桨下面叶片产生的反效果。当船向正前方行驶中，对于向右旋转的螺旋桨，这使船的船尾向右舷倾斜，船头向左。该影响很小，是可以由舵来纠正的。当发动机放在船尾，效果是相反的，船尾向左倾斜。这种效果是强大而不可轻易予以纠正。若船舶使用向左旋转的螺旋桨，其表现则正好相反。A013.Theforcethatcausestheshiptomoveaheadthroughthewaterortogoasternisknownas________....是使船在水中前进或后退的动力。A.axial

5、thrust轴向推力B.transversethrust横向推力C.thetransverseeffectofthepropellerbladesatthetopnearthesurfaceofthewater螺旋桨顶端靠近水面的叶片产生的横向作用D.thetransverseeffectofthelowerbladesofthepropellernearthebottomofthewater螺旋桨底部靠近水底的叶片产生的横向作用B014.Aleft-handedpropellers，whentheshipisgoingahead，will

6、cantship'ssternto________.向左旋转的螺旋桨，当船只前进时，会使船尾…A.starboard右舷B.port左转C.tomoveahead前进D.moveastern后退A015.Thetransversethrustofthepropellerisstrongerwhentheshipis________.当船只…时螺旋桨的横向推力会更大。A.goingastern向船尾移动B.goingahead前进C.stopped停止D.makingnowaythroughthewater在水中无法做到A016.Thetra

7、nsversethrustofthepropellercanmainlybeovercomeby________.横向的螺旋桨推力主要可以靠…来克服A.therudder船舵B.thepropelleritself螺旋桨本身C.thenauticalinstrument航海仪器D.windandtide风和潮汐Passage3-06WhileeveryeffortismadetoensurethatthedataprovidedthroughtheNoticestoMarinersserviceisaccurate，theuserneeds

8、tobeawareoftheriskstocorruptionofdata.Itisimportantthattheusershouldonlyusethedataonsuita