standard limit

The nucleic acid detection systems ( nucleic acid real-time fluorescent RT-PCR detection system, nucleic acid RT-PCR detection system, OIE standard nested RT-PCR detection method) were more sensitive than antigen-captured ELISA detection system. The detection limit gap was 2 orders of magnitude at least.

在灵敏度方面，3种核酸检测体系（核酸实时荧光RT-PCR检测体系、核酸RT-PCR检测体系、OIE标准巢式RT-PCR检测方法）均优于抗原捕获ELISA检测体系，检出限间的差距均在2个数量级以上。

Thus, rationally deciding time limit standard for mail transmission has become the first problem mutually cared by post enterprises and consumers.

因此，合理确定邮件的传递时限标准，也就成为邮政企业和用户共同关心的首要问题。

Finally, we show that when the boundary modification is comparable to the thermodynamic quantities obtained under the thermodynamic limit approximation, the result of the standard statistical mechanics will be invalid.

最后借助边界效应得取值范围分析了标准统计物理的适用范围：当边界的影响与热力学极限结果可比时，标准统计的结果将会失效。

The standard age limit for all Veterinary Officials to end their officiating function is 70 years.

所有兽医官员的标准退休年龄限制为70岁.

A model analysis of making time limit standard for mail transmission

制定邮件传递时限标准的模式分析

Based on summary and analysis of the actual conditions of post enterprises, this paper proposes two models of making time limit standard for mail transmission.

本文从总结和分析邮政企业的实际情况出发，探讨了制定邮件传递时限标准的两种模式。

Perform microbial limit inspection , i . e . confect standard solution, medium and sanitization and sterilization during experiment.

微生物限度检查(主要为配制标准溶液, 培养基,试验前后的消毒灭菌工作)

Analysis of Selection of Target Speed Value and Limit Slope Standard of Qingdao-Lianyungang Railway

青连铁路速度目标值和限制坡度标准选择分析

PAN standard sample with broad distribution has been adopted to simulate to work out equation of GPC revised curve of PAN by means of designed program in computer, and repeated the results of precision test can reach the limit of the error.

采用宽分布的聚丙烯腈共聚物（Polyacrylonitrile简称PAN）标准样品，通过编制的计算机程序，模拟计算出PAN的GPC校正曲线方程，对宽分布的标准样品进行重复测定，重现性试验结果符合误差要求。