Quality assurance in the radiotherapy planning is an effective method to assure the success of radiotherapy.
放射治疗的质量保证是保证放射治疗成功的有力方法。
The combination of higher vocational education and its mission to teach the teacher's professional ability, analysis of NC personnel training an effective way of quality assurance.
文章结合高职教育的办学宗旨和任教老师的职业能力，分析数控人才培养质量保障的有效途径。
Maintenance of effective security is a guarantee, security is the maintenance of quality assurance, security is essential to ensure maintenance work.
安全是维修效益的保证，安全是维修品质的保证，安全是维修工作最基本的保证。
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