Influence of decreasing speed technology and decreasing pressure technology on quality and properties of magnesium alloy die castings;

減速減壓工藝對(duì)鎂合金壓鑄件質(zhì)量與性能的影響

In crossing situation with a vessel approaching from forward of the beam, if decreasing speed is the only anti-collision measurement made by give-way vessel, TCPA and DCPA will regularly change with the decreasing range of give-way vessel s speed.

與正橫前來(lái)船構(gòu)成交叉相遇時(shí) ,如讓路船采取單用減速的措施 ,則隨著減速幅度大小的變化 ,TCPA(最近會(huì)遇時(shí)間 )和 DCPA(最近會(huì)遇距離 )也按一定規(guī)律變化 ,文中結(jié)合數(shù)學(xué)推導(dǎo) ,分析了兩者的變化規(guī)律 ,從而為駕駛員確立最佳避讓措施提供依據(jù) 。