安全设备

By means of simulation, the authors research the over-voltage level at AC and DC sides of converter station as well as arrestor operation condition caused by last breaker trip occurred in inverter station of UHVDC power transmission project from Yunnan to Guangdong; analyze and reveal the interrelations among over-voltage level, various operation conditions and different action delay of DC protections and propose the requirement to the time of protection coordination to ensure secure and reliable operation of equipments for the project.

文章对云广特高压直流系统逆变站最后断路器跳闸引起的换流站交直流侧过电压水平以及避雷器工况进行仿真研究，分析揭示不同运行工况、不同直流保护动作延时与过电压水平的相互关系，提出对保护配合时间的要求，以确保系统设备能安全可靠运行。

The ramming waste material automated feed way is one compatibility strong, the efficiency high, secure is reliable, the flexible combined type waste material conveyor, matches by the chain beat conveyer, carries on the centralism collection to each production line waste material, or matches by the electromagnetism feeding computer, the waste box carries on the single punch press waste material collection, thus may further enhance the ramming production the automatist, implements ramming operation area nobody to melt, enormously enhances the production efficiency.

冲压废料自动输送装置是一种适应性强，效率高，安全可靠，灵活多变的组合式废料输送设备，配以链板式输送机，对每一条生产线的废料进行集中收集，或配以电磁送料机，废料箱进行单台冲床废料收集，从而可进一步提高冲压生产的自动化程度，实现冲压作业区的无人化，极大地提高生产效率。

Air data computer being important avionics equipments, the accuracy of it is essential to performance of fight control.

大气数据机作为重要的航空电子设备，测量大气数据的精度关系到飞行控制的性能和飞行安全。

Most skiers just don't have the knowledge and experience to be safe in the backcountry, nor do they have the equipment.

大多数滑雪者根本没有的知识和经验是在穷乡僻壤的安全，也没有他们的设备。

The battercake with good quality is produced with our roasting templates fabricated by special material and process.

优质的煎饼来源于我们采用也属材料及工艺制成的烘烤模板，本设备使用方便，安全，耗能少，符合环保要求。

Introducing a kind of boiler blowpipe about boiler supperheatera ndb oilerr eheaterb etweent heirc onjunction piping to clean all kinds of miscellaneous objects that stay in the system, avoiding them affecting turbine and boiler equipments, insure the steam good quality.

介绍一种锅炉过热器、再热器及其连接管道吹管的方法，清除系统中存留的各种杂物，避免杂物对蒸汽品质和机、炉设备产生影响，从而确保机组安全、经济运行。

The pairing process is one of the most basic levels of security for Bluetooth devices.

配对过程是一个最基本的安全水平的蓝牙设备。

You will love the versatility of the Macally BookStand case.

有了这个产品，你将能够发挥作用的设备，确保其安全。

So the target of this article is to realize unmanned room to guarantee the normal operation of valuables equipment and apparatus and network data security, to avoid the communication accidents because of fire, water, brigandage and so on, to improve the service quality and lower the management cost.

为了保证机房内贵重而精密的设备及仪器仪表的全天候正常运行，保证网络的数据安全，防止因燃烧、水浸、失盗、非法入侵等情况而造成各种通讯中断的事故，提高网络服务质量，降低维护运营成本，实现无人机房的维护管理方式已成为本文设计的目标，这样对分散的电信机房集中监控管理已成为必然趋势。

Of course, the presidential compound and land are secure, and bristling with secret service men and electronic listening devices.

当然，总统的住所和那片土地都很安全，而且到处都是秘密警察和电子监听设备。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。