It has been proved in experiments that these methods not only improve the efficiency of the hydraulic system , but also the controllability of excavator 试验证明，这些措施的采用，不仅提高了液压系统效率，而且使挖掘机的操纵性得到明显提高。
Not all the chinese authorities have been easily seduced by li yuchun and the rebellion against femininity . " it ' s vulgar and manipulative , " some said 但也有机构对李宇春的“魅力”以及传统女性美的颠覆不以为然。一些人称之为“粗俗，而且是操纵性的。 ”
After many years " collecting data and researching , imo ratified resolution of a751 ( 18 ) about " temporary standard of ship maneuverability " 国际海事组织( imo )经过多年收集资料和研究，于1993年11月通过了a751 ( 18 )号决议，颁布了有关《船舶操纵性暂行标准》 。
Now , multiple - input and multiple - output rudder / fin joint control system is growingly important as the delving of ship maneuvering and modern control theories 随着船舶操纵性和现代控制理论的研究的不断深入，多输入多输出的舵鳍联合控制系统逐渐受到人们的重视。
As a result , many countries ask new - built ships and watercrafts that enter water area of their countries to put in maneuverability calculating book and correlative test record 为此，许多国家都要求新建造的船舶及进入该国水域的船舶都要提交操纵性计算书和相关试验报告。
Started with the first international symposium on ship maneuverability held in 1960 in washington , d . c . , u . s . a , the research on ship maneuverability has been progressively improved 自从1960年美国华盛顿召开船舶操纵性国际研讨会以来，船舶操纵性研究不断发展，取得了十分丰硕的成果。
