key quality characteristic chain 关键质量特性链
The excitation characteristic of secondary winding of current transformer is the key factor to transformer performance and the quality of secondary winding directly influences that of the quality.
电流互感器二次绕组的励磁特性是决定互感器性能的重要因素，二次绕组品质的好坏直接关系到成品的质量。
Software quality prediction technology is the key technology of software quality evaluation system and can evaluate software quality characteristic concerned by customers.
软件质量预测建模技术是软件质量评价体系中的关键技术，它能够对用户所关心的软件质量特性进行评价。
The development of the membranes for diaphragm valves was presented. The quality requirement for health, characteristic of formula design and key point for process were reviewed.
介绍隔膜阀膜片的研制情况，阐述隔膜阀膜片的卫生质量要求、配方设计特点和生产工艺要点。
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