In order to reduce costs and decrease attrition of steering gear is required as straight line navigation and playing fewer rudders.
同时当船舶在营运过程,为了降低成本、减少舵机磨损,需尽可能的直线航行、少打舵。
FROM radios and mobiles phones to wireless-networking gear and satellite-navigation devices, antennas are everywhere.
从无线电,移动电话,无线网络装置以及卫星导航仪,天线无处不在。
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