查询词典 keep track of one's attendance

In this thesis, a detailed dynamics model of various kinds of tracks laid on the bridge such as ballast track, REHDA track, slab track, elasticity supported block track and all kinds of roadbed-bridge transition structure of the high-speed railway is established for the

本文在国内首次针对高速铁路桥上有碴轨道、长枕埋入式无碴轨道、板式轨道、弹性支承块式轨道结构以及各种轨道的路桥过渡段建立了系统全面的动力学模型。

Research purposes:The paper gives an introduction to the additional force transfer mechanism of welded turnout on ballastless track,presents the calculation model for welded turnout on ballastless track, calculates additional force and deformation of welded turnout on ballastless track by FEM,the result is compared with ballast track.

研究目的：分析无砟轨道基础上无缝道岔的纵向力传递机理，建立无砟无缝道岔计算模型，采用有限单元法计算了无砟无缝道岔受力及变形，并与有砟轨道无缝道岔进行了对比分析，为无砟无缝道岔设计提供参考依据。

The bridge type derrick big car will appear to chew track phenomenon in the movement, slight of chew a track will result in a good luck and orbit of the on the side have obvious of wear away trace, severity chew a track will result in a good luck and orbit of the on the side metals be peeling off or the round's good luck outwardly transform and even jump the track to result in graveness Human body dead and injured and equipments trouble.

桥式起重机大车在运行中会出现啃轨现象，轻微的啃轨会造成轮缘及轨道的侧面有明显的磨损痕迹，严重啃轨会造成轮缘和轨道的侧面金属剥落或轮缘向外变形，甚至脱轨造成重大人身伤亡和设备事故。

Based on the theory study, a directional drilling guidance system is developed for practical require, its working flow as follows: before construction, design the best track practically, and save in the system. During drilling, the system measures well oblique angle and azimuth to watch well track. Drill driver compares designing well track with measuring track showing on display unit, controls joy stick experientially, adjusts drill direction, finally realizes directional drill.

在理论研究的基础上，结合实际需要，研究设计了一种定向钻井导航系统，使用该系统进行定向穿越施工的工作过程如下：在施工前，根据实际情况，先设计一条最佳穿越路线，存入系统；在钻进中，系统通过对井轨的井斜、方位等参数的测量，对其进行实时监测；地面的司钻手通过对显示仪所显示的实际井轨参数及设计井轨参数进行比较，根据经验操纵操作杆，调整钻机前进方向，以达到对钻进过程的控制，最终实现定向钻井。

This time you're not the driver of the trolley car,you are an onlooker.you are standing on a bridge,overlooking a trolley car track,and down the track come the trolley car, at the end of the track are five wokers.the brakes don't work.the trolley car is about to crash into the five and kill them.and now you are not the driver,you really fell helpless.until you notice standing next to you,leaning over the bridge is a very fat man.and you could give him a sholve,he will fall over the bridge onto the track.right in the way of the trolley car.he would die but he would spare the five.now how many would push the fat man over the bridge .raise your hands.

现在，你不是电车司机，你是个旁观者，你站在桥上，俯瞰电车的电轨，沿着轨道尽头有5个工人。电车手刹照样不灵了。电车快要撞向这5人。你不是司机，你真的感觉很无助。突然，你看见站在你旁边，桥边还有一个非常胖的人，你可以推他一把，他会掉到轨道上，刚好能停住车。他会死去，但能救活其他5个人。有多少人会推那个胖子？

The invention includes a bridge, a bridge traveling mechanism, a crane trolley, a telescopic boom and a telescopic traveling mechanism; wherein the bridge traveling mechanism drives the bridge to travel longitudinally along the track on elevated beams on the two sides; the crane trolley travels laterally along the track on the bridge; the telescopic boom is arranged between the crane trolley and the bridge, the crane trolley travels laterally along the track on the telescopic boom; and the telescopic traveling mechanism drives the telescopic boom to travel laterally along the track on the bridge.

本发明包括桥架、桥架运行机构、起重小车、伸缩臂和伸缩运行机构；其中，所述桥架运行机构驱动所述桥架沿两侧的高架横梁上的轨道纵向运行；所述起重小车沿所述桥架上的轨道横向运行；所述伸缩臂设置在所述起重小车和所述桥架之间，所述起重小车沿所述伸缩臂上的轨道横向运行；所述伸缩运行机构驱动所述伸缩臂沿所述桥架上的轨道横向运行。

In a preferred embodiment, the guiding track is annular and is bounded by a circular cylindrical rolling surface (51) of the rolling track and a roller (35) of the driving member, said roller being rotatable about an axis of rotation (37) coinciding with a common central axis (39) of the guiding track and the rolling track.

在优选实施例中，导向轨道是环形的并且被滚动轨道的圆柱形滚动表面（51）和驱动件的辊子（35）限定，所述辊子能够绕着大致与导向轨道和滚动轨道的公共中央轴线（39）重合的旋转轴线（37）转动。

Road racing and mountain biking relate easily to the average rider's view of cycling. Track cycling does not. In track cycling, the riders go nowhere, just around and around an oval track banked at 42 degrees. The track's name - the velodrome - sounds space-age, and the helmets, suits and bikes bearing no resemblance to a common two-wheeler more closely resemble something out of Star Wars.

公路自行车项目和山地自行车项目似乎更符合普通人对自行车项目的认识，但对场地自行车却不同，场地自行车运动员只是在呈42度角倾斜的场地内一圈接一圈地骑行，赛车场、运动员的头盔、比赛服和自行车本身都仿佛来自《星球大战》，和普通自行车项目相距较远。

This attendance management system uses VB2005 + SQL2005 combined the attendance machine network to achieve, it enables the school through this system intuitived understanding the students to the class study situation, it changes the condition to depend on call-over and statistics manually in the past, and enhances the school administration efficiency.

本考勤管理系统用VB2005+SQL2005结合考勤机网络来实现，使学校通过这套系统能够直观的了解学生的到课学习情况，改变过去靠手工来点名和统计，提高了学校管理效率。

Lunch count/attendance "Hot lunch" means you are having school lunch;"cold lunch" means you brought a lunch from home; move your attendance tag/magnet/clothespin to the "hot lunch" or "cold lunch" sign/spot; wait patiently for your turn.

午餐数/出席-"热午餐"是指您在学校的午餐，"冷午餐"是指你从家里带来的午餐，提出你的出席标签/磁铁/衣夹的"热午餐"或"冷午餐"的标志/点，耐心地等待轮到你了。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。