track vt. 用纤拉船。 vi. 拉纤行驶。 n. -age 拉纤。 n. -er 拉纤的人。 n. 1.轨迹,轮迹,航迹,痕迹;〔pl.〕足迹。 2.小路,小径;【物理学】径迹;历程,路程;行程;行动路线;思路。 3.(阴谋等的)形迹,线索;跟踪目标;导向装置。 4.【运】跑道;径赛[田赛]运动;〔美国〕铁道路线,轨道;(录音磁带的)音轨;【机械工程】履带,环带;跨距;(两轮间的)轮距;【地质学;地理学】开合脉。 the beaten track 踏出来的路;常规,惯例。 a single [double] track 单[双]轨。 clear the track 让路;〔命令〕走开! 让开! cover (up) one's tracks 隐匿行踪;隐藏自己的企图[计划等]。 in one's tracks 〔俚语〕就在那里,就那样;〔美国〕当场;立刻。 in the track of 仿…的例,学…的样;在…的中途,正在…。 jump [leave] the track 〔美国〕出轨。 keep track of 追踪;记录;保持联系;密切注意…的动向。 lay tracks 铺轨。 lose track of 〔比喻〕忘记,失去联系。 make tracks 走开;跑掉,逃走;追 (for)。 off the track 出轨;出岔子;(话)离题;(猎狗)失去嗅迹,失去(犯人的)线索。 on the track of 跟踪追赶,尾追;没有出轨;未出岔子;话未离题;得到…的线索。 put sb. on the track of 使追踪。 throw off the track 摆脱(追踪者)。 vt. 跟踪追赶 (down) 踏成(道路);践踏,踏脏,踏平(等);通过(荒漠);铺设铁路;顺着走(旧辙);探索 (out) 拖(船)。 vi. 追踪;留下行迹;铺设铁路[铁轨];(车)顺着一定线路走;(车轮)具有一定轮距;〔美口〕走小路,前进;(船)被拖着走。 track mud through a house 踏得一屋子泥。 -age 拖船;〔集合词〕轨道;铁道路线;铁道路线全长里数;铁道使用权[使用费]。 n. -er 追踪者;【无线电】跟踪系统;跟踪器;【军事】跟踪标定仪;搜索者;纤夫。 n. -ing 跟踪,跟踪目标;【电影】跟踪摄影 (aided [automatic] tracking 半自动[自动]跟踪)。
linear adj. 1.线的,直线的。 2.长度的。 3.【数学】一次的,线性的。 4.【动、植】线状的;细长的。 5.由线条组成的,以线条为主的,强调线条的。 linear amplification 直线放大。 a linear equation 一次方程式。 a linear leaf 线形叶。 linear arts 线条艺术。
Test and verification of deflection in asphalt pavement structure with linear track 湘西通县公路沥青路面结构设计参数研究
The inverted pendulum is a classical control problem of balancing a stick vertically on a linear track cart 倒立摆控制是一个经典的控制平衡问题。
The z axis adopts the high precise linear track by swiss schneeberger and the high sensible servo-motor by japanese sanyo, which is provided with an excellent rigidity 轴使用瑞士schneeberger高精度线性滑轨配合日本sanyo高灵敏度伺服马达精度高,刚性佳。
For linear tracking systems with disturbance, design constraints are formulated by two proposed basic information conditions for efficient tracking 针对有噪声干扰的跟踪系统,提出两个以有效跟踪为目的的“基本信息条件”,阐述跟踪控制系统内在的设计约束。
The basic operation principle of phase-locked frequency synthesizer and the type of circuits are expatiated systematicly in this paper . the principle of operation on sampling phase detector and some characteristics including the linear tracking and phase noise in phase loop circuits are analyzed deeply . the research is emphased on the theory and design method of circuits in the sampling phase-locked frequency synthesizer . then, the expansion capturing circuit is analyzed and designed for better performance of capturing loop circuits . at last, the loop filter is also analyzed and contrived taking account of effection of additional phase shift by the sampling-holder . the general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product 本文系统的阐述了锁相频率合成器的基本工作原理及电路类型;较深入地分析了取样鉴相工作原理及电路、锁相环路的线性跟踪特性和相位噪声特性;重点对取样锁相频率合成器电路理论和设计方法进行了研究;为了改善环路的捕获性能,对扩捕电路进行了分析和设计,并用wewb32软件对电路进行了仿真;考虑到取样保持器的附加相移影响,对环路滤波器进行了分析和设计。
The passive location and tracking system, which uses electromagnetic wave emitted by target, has proved its merits of self-hiding and far-distance detecting in modern electronic warfare ( ew ) and information warfare . and it is now the hotspot in the field of non-linear tracking and estimation 在现代电子战、信息战环境中,由于利用目标辐射电磁信息的无源探测定位系统具有自身隐蔽和探测距离远等优点,因此它具有重要的应用价值,并已成为当今非线性跟踪与估计研究领域的热点问题。