Oils and products have applied extensively among not only each field of national economy and mankind daily life, but also the main motive force source of the naval vessel.
油类及其制品不仅在国民经济的各个领域和人类日常生活中被广泛应用，而且也是海军舰船的主要动力源。
Leisure is an important component in the human life, it is a kind of important motive force source of society, cultural and economy.
休闲是人类生活中的一个重要组成部分，它是一种重要的社会、文化和经济的动力源。
In allusion to the dynamic source of water stream and vegetable, that is, vane wheel which was analyzed the force distribution in the static and motive water.
针对水流与蔬菜的动力来源——叶片，分析了叶片在水体静止与运动状态下的受力分布情况；
Standing jump-up is very important for some sports items. The motive force for jump-up is the supporting resistant force from ground to the suporter, no other source exists.
原地起跳对许多运动项目都很重要．原地起跳所借助的推动力，就是地面对人体产生的支承反力，离此别无他途。
Standing jump-up is very important for some sports items. The motive force for jump-up is the supporting resistant force from ground to the suporter, no other source exists.
原地起跳对许多运动项目都很重要．原地起跳所借助的推动力，就是地面对人体产生的支承反力，离此别无他途。
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