还在试验当中或者非官方的MIME类型在二级分类开头会加一个“x- ”。
Experimental, or unofficial MIME types are denoted with a subtype that starts with, "x -".
针对炼油厂含油废水的常规生化处理工艺对氨氮的降解效果较差，采用曝气生物滤池作为二级生化进行试验研究。
Aiming at the poor effect of amino nitrogen degradation in conventional refinery oil sewage treatment, the secondary biochemical test was carried with biological aeration filter pool.
针对某系列反舰导弹打靶实例中机电引信出现二级保险提前解除的问题进行了理论分析和试验。
The theoretical analysis and test is carried out for the premature releasing for the two-stage safety of electromechanical fuze in a real flight of antiship missile.
本文将根据本市101线二级公路的施工试验情况，简要讲述SBS改性沥青的施工技术要求。
According to construction test of second-class highway at Line 101 in Fuxin City, the paper briefly gives an account of the requirements for construction technology of SBS modified asphalt.
本文根据高低二级应力作用下的疲劳寿命试验，验证了等损伤线互不平行且向下汇聚。
On the basis of fatigue test under high-low two stresses loading, the paper testifies that the equivalent damage lines do not parallel each other and tend to converge slightly over the fatigue limit.
利用来自二级抽样的玉米品比试验资料，对抽样方案进行了讨论。
Making us of the datum of maize variety comparative test by twi-sampling, the sampling scheme was studied.
文中给出了二级脉管制冷机的基本结构尺寸以及试验结果：一级脉管达到45K；
The test results and the basic configuration of the two stage pulse tube refrigerator are presented. The first stage temperature was 45K.
为研究径流式二级增压系统的喘振及其影响因素，建立了二级增压系统压气机性能试验台架。
To study centrifugal two stage turbocharging systems surge and the affecting factors, a test bench special for two stage turbocharging system is set up.
为掌握煤粉无油二级直接点火燃烧器内部流动、燃烧特征，进行了试验和数值模拟。
Experiments and numerical simulation are carried out to recognize the exact flow and combustion characteristics in a two-stage oil-less ignition system.
方法采用二级台阶负荷试验法。
采用二级串联潜流式人工湿地系统对太湖地区农村生活污水进行了脱氮除磷的试验研究。
Experiments of nitrogen and phosphorus removal from rural domestic wastewater in the Taihu Lake basin were carried out by the two-stage subsurface flow constructed wetland process.
介绍了某型号运载火箭二级燃料箱后底顶盖成形方法改进及工艺试验过程。
The paper introduces the shaping method improvement and technological trial course of bottom cap of certain model of carrier rocket's fuel tank.
美国和全球各地区指南都对一级预防和二级预防临床试验做了很好的分析和总结。
There are guidelines both in the US and in other areas of the world where the clinical trials for primary prevention and secondary prevention have been well analyzed and well considered.
取得土建二级建材试验室的资质，必须通过省级计量行政部门计量认证。
The authentification of the measurement administration department of provincial level is necessary for the qualification of a secondary laboratory of building materials.
本文介绍利用复合激活和组份优化技术改性华能上安电厂二级粉煤灰的情况，采用正交设计方法对试验方案进行配方优选。
In Present paper, the composite activation and optimization of components of fly ash produced by Huaneng Electical Plant has been studied with orthogonal design method.
介绍了用于高压氦气试验回路的二级涡轮式氦气循环风机。
A 2-stage turbine helium circulator is used in the high pressure test helium loop in INET, TsinghuaUniversity.
对大规模随机试验中测试二级预防时，病人应该根据已知的引发肝癌的危险程度包括基因型和变异类型来分组。
When secondary prevention strategies are tested in large randomized trials, patients should be stratified by known risk factors, including viral genotype and mutations.
目的总结多中心临床试验“血脂康调整血脂对冠心病的二级预防研究”中血清总胆固醇（TC）和甘油三酯（TG）测定室间质量控制结果。
Objective To summarize the external quality control results on the measurement of TC and TG for a multi-center clinical trial.
采用室内试验和现场试验考察了黄花鸢尾、水葱和梭鱼草3种挺水植物对类污水处理厂二级出水中氮、磷的吸收速率、吸收容量和吸收贡献。
As a result Iris pseudacorus has the biggest absorption contribution rate for removing nitrogen and phosphorus from the secondary effluent from April to October, which gets 30% and 73% respectively.
对常用的三种挂膜方式进行了对比试验，结果发现，采用二级处理回流污泥进行接种对好气滤池的启动没有明显促进作用；
Results shows that, start-up by seeding activated sludge from a secondary treatment plant has no beneficial effects. On the contrary, the start-up period are detained.
设计了一种第一级能够形成环形射流的W型聚能装药，第二级采用大锥角聚能装药的串联战斗部，并且通过试验研究了该种战斗部对靶板的毁伤效果。
W type liner that can form annular jet is adopted as the forward charge and the wide Angle shaped charge is adopted as the follow through one.
设计了一种第一级能够形成环形射流的W型聚能装药，第二级采用大锥角聚能装药的串联战斗部，并且通过试验研究了该种战斗部对靶板的毁伤效果。
W type liner that can form annular jet is adopted as the forward charge and the wide Angle shaped charge is adopted as the follow through one.
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