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1、船舶狭水道航行须知NarrowChannelnavigationInstruction1.总则GeneralRule1.1.狭水道是指相对水深或水道相对宽度较小的航道，狭水道内，航道狭窄弯曲，水浅滩多，还有暗礁，沉船或渔栅等障碍物，水文气象条件多变，船舶交通密集，为了确保狭水道内航行安全，必须经常研究和掌握该水道的地理特点及水文气象条件，加强了望并谨慎驾驶，避免发生碰撞和触浅的事故。Narrowchannelmeansthewaterwaywithsmallrelativewaterdepthorsm
2、allrelativebreadthofchannel.Innarrowchannel,waterwayisnarrowandcurved,shallow,manyshoal.Thereisredge,wreck,fishingstakesandotherobstacle.Hydrometeorsarechangeable.Heavytraffic.Toensuresafenavigationinnarrowchannel,shouldoftenresearchandknowwellthehydrom
3、eteorsandgeographicalcharacterandreinforcelookout,steerprudently,avoidcollidingandgrounding.2.狭水道中的操船要点Keypointsforsteeringinnarrowchannel2.1.水道的全面调查。Fullcheckforchannel2.1.1.掌握狭水道水域附近的地形地貌，狭水道内可航水域的水文情况等。Beingmasterytheterrainsandlandformsnearthechanne
4、l,thehydrologicregimeofnavigablewaterareainnarrowchannel2.1.2.掌握狭水道助航标志的系统。Masterynavigation-assistancemarksysteminnarrowchannel.2.1.3.掌握狭水道附近的风浪等自然情况，并配以风压差。Masterywind,waveandothernaturalconditionnearthenarrowchannelcoordinatedbywindpressuredifference
5、2.1.4.掌握狭水道内的船舶交通状况。Masteryoftrafficconditioninnarrowchannel2.2.行驶在计划航线上。Sailonthescheduledroute.2.2.1.航线的设计，只要安全可行，应尽量靠近本船航行的右侧水道或航道的外缘。Ifitissafe,designedrouteshouldclosetotherightwaterwayofownshiporwaterway’souteredge.2.2.2.选用大比例尺海图，进入该海区航段之前，二副应将海图改
6、正到最近、最新。Largescalechartshouldbeused.Beforeenteringintothismaritimezone,secondofficershouldamendthecharttothelatest,uptodateedition.2.2.3.为了随时查验本船是否行驶在计划航线上，采用的导航方法有浮标导航、岸标导航、单标方位导航等。Forcheckingifshipisonthescheduledroute,buoynavigation,landmarknavigatio
7、n,singlemarknavigationshouldbeusedasnavigationway.2.2.4.为防止船舶相对于计划航线偏离过远而发生危险的避险法，可用物标方位线避险法、距离圈避险法等。Topreventshipdeviatefromscheduledroutetoomuchtobeindangerous,objectbearinglineavoidingdangerous,distancecircleavoidingdangerousshouldbeused.2.2.5.准确掌握转向
8、点根据船舶所受风、流情况，正确选择转向依据的转向时的船位，按所处的地理环境的弯势等适当用车用舵，使船驶于新的航线上。Accuratelymasterytheturnpointbasedonthebearingwindandcurrent,useengineandhelmappropriatelybasedongeographicalbendandmaketheshipsailinnewroute.3.狭水道中操船时的注意事项Guidelinesforma
