protective operation

Protective circuit is set internally for over heat, abnormal voltage to safe operation.

内置过热, 电压异常保护电路,使用更安全.

Conclusions To raise the diagnostic rate of acute achilles tendon rupture, the noninvasive operation and protective method in postoperation should be the important method.

结论提高急性跟腱断裂诊断率、术中无创操作、术后预防措施是预防跟腱术后感染的重要措施。

The main function of the biological safety cabinets is to provide a clean operating space, it is an important clean equipment of microbial experimental operation, it plays a protective effect for operator, experiment environment and the samples.

生物安全柜的主要功能是提供一个洁净的操作空间，它是微生物实验操作的重要洁净设备，对操作人员、试验环境和受试样本起隔离保护作用。

Protective circuit is set internally for over heat, abnormal voltage to ensure safe operation.

■内置过热, 电压异常保护电路,使用更安全.

According to the on site experience of protective relaying operation, some problems in the configuration of longitudinal differential protection and that in the coordination of audio frequency interface and the protection are discussed.

探讨音频接口与继电保护的配合问题对提高电力系统继电保护运行的可靠性具有重要意义。本系统的经验可以在开发设计其他相关系统时所借鉴。

According to the practices of digital line protection in both site operation and maintenance at different stages, the development of digital line protection is summarized from protective functions, reliability, man-machine interface and information management. At the same time some suggestions are put forward.

根据数字式线路保护在不同阶段的现场运行和维护的实践，从保护功能、可靠性、人机界面、信息处理等方面回顾总结了数字式线路保护的发展历程，并提出了一些建设性意见和建议。

Methods 114 cases with RA and 120 cases with AS were treated by vagal activation. The cardiac protective treatment was given before operation, and proper cure for the symptoms after operation.

方法对114例RA和120例AS采用迷走神经微创术进行治疗，术前对心脏进行保护性治疗，术后对症治疗。

This is why the protective relay must be reliable, maintainable and fast in operation.

这就是为什么保护继电器必须可靠, 易于维护和快速运作.

Protective fencing and electrical interlock ensure safe operation.

防护栅栏与电气联锁确保操作安全.

Protective clothing for hazardous chemical operation pest control dangerous goods store

危险化学品作业防护服防治虫鼠危险物品仓