The spirit of the exponential slippage guidance method is keeping the direction from temporary position to the aiming point while decreasing the approach speed.
指数滑移导引律的基本思想是在逼近过程中，保证追踪星的当前位置和终端位置之间的矢量方向不变，而逼近速度逐渐减小；
We study the mechanism of slippage in rural road surface in Liaoning Province from a theoretical point of view in order to find reasonable technical measures to handle problems aroused.
目的研究辽宁省低等级公路路面推移现象产生的机理，提出合理的防治该种病害的技术措施。
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