Because the terrain is various,a lot of movments of tank on various terrain are analyzed.
由于虚拟现实中的地形是各种各样的，坦克的运动状态也不尽相同，所以本文分析了坦克在各种地形下的运动情况，并且给出了坦克运动状态的判别式。
参考来源 - 越野环境中坦克动力学建模研究Firstly, the actuality of portable anti-tank missile in the world is introduced.
对目前国际、国内便携式反坦克导弹的现状进行综述。
参考来源 - 便携式反坦克导弹CDMA无线制导方式探索N-COUNT（可数名词） A tank is a large container for holding liquid or gas. (盛放液体或气体的) 罐; 箱; 槽
...an empty fuel tank.
…一个空的燃料罐。
N-COUNT（可数名词） A tank is a large military vehicle that is equipped with weapons and moves along on metal tracks that are fitted over the wheels. 坦克
V-I（不及物动词） If something such as a stock price or a movie tanks, it performs very badly, for example because it loses a lot of money. 表现得很糟糕 [美国英语][非正式]
Tech stocks have tanked.
科技股票已经表现得很糟糕了。