安全辅助驾驶（SDA）：Safety Driving Assist（SDA） 安全性和有效性技术指标：safe and effective performance 安全标准/技术规范体系：safety standard and technical code system ..
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Mainly applied to pneumatic cervical spondylosis of nerve root traction, play a role in easing symptoms, easy to use, simple operation, good performance, safe and effective.
主要适用于神经根型颈椎病气动牵引，起到缓解临床症状的作用，使用方便、操作简单、性能良好、安全有效。
This paper describes some methods of improving the performance of HIS. Through the proof-test of practice, these methods are safe and effective.
本文介了医院信息管理系统数据库性能提升的几种方法，经过实践的检验，这些方法是成熟、安全、有效的。
Intensive observation during the performance, effective prevention measures and avoiding the occurrence of complications are necessary to ensure a safe and successful examination.
检查中严密观察病情，采取有效的预防措施，避免并发症的发生，是确保检查安全、成功的重要环节。
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