研究试验
- 与 研究试验 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The ANRS 116 SALTO trial, a prospective, open-label, multicenter trial conducted in France, enrolled 99 patients, 63 of whom were men. At 24 months, 88% of patients (95% CI, 80 ??93) did not meet study criteria to reinitiate HAART: a decrease in CD4 cell count to 300 cells/弮L or the occurrence of an AIDS-defining event. More than three quarters (77%) did not resume HAART. Statistical analysis indicated that HIV- DNA level, CD4 nadir, CD4 at HAART initiation, CDC stage, and HIV risk category were significant risk factors for HAART reinitiation.
ANRS 116 SALTO试验则是法国的一个前溯式、开放标记、多中心试验,包含99位病患、63位是男性,24个月时,88%的病患(95% CI, 80 – 93)未达重新启动HARRT的研究规范:CD4细胞计数降低至 300 cells/μL 或者出现AIDS相关事件,超过四分之三(77%)未恢复 HAART;统计分析指出HIV-DNA值、CD4最低值、HAART开始时之CD4值、CDC分期、HIV 风险分类都是HARRT重新启动的显著风险因素。
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In the paper,the concept of respirable dust and elemental demend of experimental respirable dust were introduced,the production method of respirable dust was studied,and the efficiency was tested and analysed.
文摘:介绍了呼吸性粉尘的概念,试验粉尘的基本要求,研究了试验呼吸性粉尘的制备方法,并对研制的滤料阻尘效果进行了测试分析。
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The regulations of different water stress and rewater on chlorophyⅡ fluorescence induction kinetics parameters of farm crop leaves were studied , using maize under PEG simulation and the paddy rice in pot .
以夏玉米和水稻为试验材料,采用PEG模拟水分胁迫试验和盆栽实验,研究了不同程度水分胁迫及复水后作物叶片荧光参数的变化规律。
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In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.
为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性,本文针对特高含水期水驱及聚驱井采出液进行了流变性试验,确定了特高含水期油井采出液的性质属牛顿流体;利用不同介质,进行管流特性与泵特性试验,得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数;根据泵特性相关理论和抽油泵受力分析模型,计算了不同参数下柱塞与泵筒间的摩擦阻力,并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算,计算结果与实测值误差在13%以内。
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On generator working condition,e xperimental cycles are made on NO x em is sion from a 4135G diesel engine by changin g injection timing and compression ratio , based on technical code on emission of m a rine diesel engine drawm up by Internati onal Maritime Organization.
在保证柴油机的经济性前提下,寻找降低柴油机NOx 排放率的途径,根据IMO《船用柴油发动机氮氧化物释放控制技术规则》推荐的试验程序,对一台 4 135G柴油机在发电机工况下进行改变喷油正时和压缩比的试验研究。
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Experiments are done. The results of experiments are satisfactional and consistent with theory. The results of experiments indicate the design of the hydraulic loading is right.
利用所开发的单片机测控系统对液压加载系统进行了阶跃响应和频域响应试验研究,试验结果表明,液压加载系统完全能满足液压悬挂系统的要求,并且与理论分析结果一致,说明液压加载系统的设计和控制方法是正确的。
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The results of experiment express the dynamic performances of the hyd raulic hitch are satisfactional to tractor.
采用模糊控制后,对液压悬挂系统进行力调节、位调节的试验研究,试验结果表明,采用模糊控制是可行的,能够得到较好的效果。
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Numerical predicted results, except slagging process, are compared with experimental data.
数值试验的结果,除了结渣的研究是理论的探讨以外,大多与试验进行比照。
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In order to improve management level of soilless culture, based on the model, the expert system of lettuce soilless culture was designed.
为了进一步提高无土栽培的管理水平,在试验得出的模型的基础上,以试验模型为主要依据,结合前人的研究成果,尝试开发生菜无土栽培专家系统。
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Through a series of quenching, tempering, tensile testing, low-temperature impact test and metallographic analysis, we ultimately came to the following conclusions:(1) low-carbon alloyed steel 20CrMn2NiMoV quenching at 870℃ and tempering at 200℃, whose structure contains tempered dislocation lath martensite and few small bainite under mixed, has the best obdurability;(2) Carbon Steel 45CrMn2NiMoV quenching at 850℃ and tempering at 620℃, whose structure is sorbitic, has a performance less than that of low-carbon Alloyed steel, but it can also meet the basic design requirements.(3) Mn can substitute for the role of Ni within limited extent.
通过一系列淬火、回火、拉伸试验、低温冲击试验以及金相分析,最终得出以下主要结论:(1)低碳合金钢20CrMn2NiMoV经870℃淬火+200℃回火,得到回火位错型板条马氏体+少量细小下贝氏体的混合组织,具有最佳的强韧性配合;(2)中碳合金钢45CrMn2NiMoV经850℃淬火+620℃回火,得到回火索氏体组织,综合性能虽然不及低碳合金钢,但也能基本满足设计要求;(3)Mn在一定程度上能够替代Ni的作用,适量的Mn和Ni相互配合可以得到最佳的低温韧性,因此&以Mn代Ni&是低温钢材料研究开发中一条可行的适合我国资源状况的合金化思路。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。