Go there once walked the streets, saw a look without a trace the long road, late at night where the desolate, there is no trace of my walk.
到那曾经走过的大街上，看到一望无迹长长的大路，深夜那儿冷冷清清，毫无我走过的痕迹。I rather facing thy eyes and be fade with no trace.
你若太阳，我张目对日亡无迹。But an erratically appreciating exchange rate with the associated hot money flows does much more long-term damage to the economy.
而无迹可循的汇率升值加上与之相关的热钱流入，对经济的长远损害还要大得多。The performances of the extended kalman filter(EKF) and the unscented kalman filter(UKF)in constant velocity( CV ) model are compared.
比较了跟踪系统中扩展卡尔曼滤波、无迹滤波在二阶常速（CV）统计模型下实现的性能。Then the thesis compared unscented kalman filter and extended kalman filter, and selected the former for inverted pendulum system.
比较了扩展卡尔曼滤波和无迹卡尔曼滤波，选定无迹卡尔曼滤波为倒立摆控制系统的滤波算法。A scheme of estimating the flight attitude of a rolling missile based on square root-unscented Kalman filter(SR-UKF)was proposed.
给出一种基于平方根无迹卡尔曼滤波器（SR-UKF）的滚转弹飞行姿态获取方法。Then the thesis analyzed the significance of applying unscented kalman filter to inverted pendulum system.
分析无迹卡尔曼滤波算法在倒立摆系统上应用的意义。How can it heal, if I look the same?
何以痊愈，我倘若无迹？Without sufficient gravity, any gases will just leak out into space and be gone.
如果没有地球的地心引力，所有的气体将会挥发到太空中去，无踪无迹。