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Whether students or teachers, are free and without hesitation to operate at any time to enter the virtual laboratory apparatus, to carry out various experiments.

无论是学生还是教师，都可以自由地、无顾虑地随时进入虚拟实验室操作仪器，进行各种实验。

Arthur Leonard Schawlow, for some time a professor at Stanford University but now deceased, showed theoretically that masers could be made to operate in the optical and infrared region and proposed how this could be accomplished in particular systems.

这个实验的精度是前无先例的，能测出小到10^-12的相对频率偏差，这更确凿地证实了七十多年前迈克耳孙-莫雷的实验结果，这个实验以及当时发现不久的穆斯堡尔效应，都证实了爱因斯坦的相对论理论。

Many administrations later adopted a mileage based maintenance system, although this is more difficult to operate as you have to keep records of all vehicle mileages and this is time consuming unless you have a modern train control and data gathering system.

许多管理者采用的是以走行公里数为基础的维修系统，这给管理者带来了困难，必须记录每一辆车的走行公里数，如果没有现代化的管理和数据采集系统，这种方法是很费时间的。

Products also have hold-up time greater than 20 ms at 100 Vac and operate over 0-50° temperature range.

产品还举行了20余次大于100醋及操作温度范围超过0~50°。

Currently the owner and two part time employees operate the business.

目前卖主和两个兼职人员在操作此业务。

Moreover, this kind repairers suitable temperature range is wide, from 0°C to 35° C, and can be used in the whole year. The cement concrete pavement fast repairer has a long time to be used in construction and is easy to operate, so it can be widely used in road construction.This thesis reports the present development situation of Portland cement concrete pavements in Sichuan Province. It focuses on the investigation of pavement conditions in the northern section of Dajian Road, the Chengdu-Longquanyi section of Chengdu-Chongqing Freeway, and Chengdu-Wenjiang-Qionglai Highway.

论文全面总结分析了四川省水泥混凝土路面的发展现状，重点对大件路北段、成渝高速成龙段、成温邛公路三个路段的水泥混凝土路面破损情况进行了调查，分析了主要的破损类型并进而指出了四川省水泥混凝土路面发展中存在的问题。

Days painted screen pen - projector partner, it allows you to achieve this kind of operation: hand and teach pole projection screen directly to the ordinary into a touch screen, directly on the projection screen to operate on computer - free to drag, pull, rattle transfer, graphic mark, writing painting easier, use the time to forget the existence of the computer!¤: 4880 yuan / sets?

天绘屏笔-投影机伴侣，它让你实现这样的操作：手拿教杆直接把普通投影屏幕变成触摸屏，直接在投影屏幕上操作电脑--随意拖、拉、摇、移、图文标注、书写绘画得心应手，使用时可以忘记计算机的存在！

Unlike many Japanese firms, the bank also outsources much of its work—which enables it to operate with just 300 full-time staff.

不同于许多的日本公司，这家银行外包了其许多服务-------这就使得其仅仅依靠300名全职工作人员就可以开展业务。

Most topics which we can expect Clarkson to have a witty opinion on are covered, from the currently very topical 'Nimbyism'(objection to unpleasant things being placed near where you live), to men's inability to look after children for long periods of time, or to operate 'white goods'.

而在大部分所涉及的论题中，从当前非常热门的&为生存权而抗争&（即反对在你居住地附近安置令人不悦的东西）到男人们所缺乏的能力——在长时间照看小孩方面或在&白色物品&的使用上，我们都可以期待看到克拉克森的诙谐言辞。

At the same time, we should also consummate the restricting mechanism by their self-locating to form them self-restricting. Then we should exercise the punishment rationally and found up the credit evaluating system to restrict their behavior so that finally we can satisfy the efficient demand of the insurance market and help the insurance company operate and develop steadily.

同时，应完善对个人保险代理人的约束机制，通过个人保险代理人的自我定位形成自我约束，再通过对合理的惩罚力度的运用和个人保险代理人信用评估体系的建立来约束个人保险代理人在展业中的行为，从而满足保险市场的有效需求和保险公司的稳定经营和发展。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。