protected ground

Protective control system for coal-mine band conveyor is comprised of ground monitoring center, control substations and explosion protected computers.

煤矿用带式输送机保护控制装置系统主要由地面监控中心、井下各控制分站和防爆计算机构成。

So, before the feasibility of construction project is demonstrated, it has important practical meaning for investigating the relation of project ground regional crustal stability and seismic surges and providing scientific foundation for confirming the request quake-proof and protected.

因此，在建设工程进行可行性论证之前，研究工程场地区域地壳稳定性和场地地震动衰减关系，为建设工程确定抗震设防要求提供科学依据具有重要的现实意义。

Occurrence Regularity and Controlling Technique of Vegetable Grey Mound in Protected Ground

保护地蔬菜灰霉病发生规律及防治技术研究

Planting ground cover crops or green manure in the cotton fields protected the overwintering predators and significantly increased their population numbers in the following year.

棉茬地种植越冬作物，增加地面覆盖是保护天敌越冬，大量增加来年天敌数量的有效措施。

Ground on these works, my article affords a security mechanism based on elliptic curve cryptography, the data changed between RFID tag and reader can be protected by this mechanism. My article also analyzes the protocol which is constructed by the security mechanism in the round.

并在此基础上提出了基于椭圆曲线密码的安全机制，用以保护RFID标签与读写器之间的数据交换，还对利用该安全机制所构造的协议进行了全面的分析。