测定时间

Inspiratory time is measured from the beginning of inspiration to the beginning of exhalation .

吸气时间测定是从吸气开始到呼气开始。

Expiratory time is measured from the beginning of exhalation to the beginning of the next inspiration .

呼气时间测定是呼气开始到下一次呼气开始。这里的"呼气"应该是"吸气"吧？麻醉学相关临床指南汇总！

Adopted the method of animal experiment, we observed the swimming time of spleen-deficient model mice, the survival rates of cold-resistant, thymus gland exponent, spleen exponent, expurgation exponent K and revised expurgation exponent a.

1采用动物实验的方法，分组观察峨参对脾虚模型小白鼠游泳时间、耐寒机能测定的存活率、胸腺指数、脾指数以及廓清指数K及校正廓清指数a。

objective to study the anti-tumor activity and enhancing immune effect of phellinus linteus.methods the anti-tumor activity of phellinus linteus was estimated by the longevity of eac mice,the immune effect of tumorous mice was tested by the experiment of carbon particle expurgation and the il-2 concentration in serum of tumorous mice was determined by elisa.results phellinus linteus can prolong eac mouse's life and can increase the il-2 concentration in serum of tumorous mouse but can't affect the immune effect of tumorous mouse.conclusion chinese hurb phellinus linteus possess some antitumor power for tumor-loaded mice,but further research is needed.

目的 观察桑黄对肿瘤的抑制作用及对机体免疫功能的影响。方法以小鼠艾氏腹水癌的生命延长率评价桑黄的抗肿瘤作用，以炭末廓清实验观察荷瘤小鼠非特异性免疫功能，以elisa法测定荷瘤小鼠血清il-2浓度。结果桑黄对eac荷瘤小鼠的生存时间有延长作用，对荷瘤小鼠血清il-2浓度有提高作用，对荷瘤小鼠非特异性免疫功能无明显影响。结论中药桑黄对荷瘤小鼠具有一定的抗肿瘤能力，作用的强度和作用机制的深度还有待进一步研究。

The relation between the total alkaloids concentration of the extractant and extracting time in the unit was measured.

今用紫外分光光度法分析总生物碱的含量，测定了雷公藤动态循环提取过程中总生物碱浓度和提取时间的关系。

In this study, a set of parallel measurements of the specific surface area of calcite, quartz, smectites and marine hydrogenous ferromanganese crusts has been carried out.

以方解石粉体、石英粉体、蒙脱石等常见矿物材料和铁锰结壳为例，根据各类材料的比表面积测定数据，研究了探针气体种类、脱气温度和吸附平衡时间等测试条件的影响。

The reaction time, reaction temperature and catalyst influencing on esterification were investigated, and the acid value, flashing point and other properties were determined.

考察了反应时间、反应温度、催化剂等反应条件对酯化反应的影响，并对增塑剂的酸值、闪点及其他主要性能指标进行了测定，改进了酯化反应工艺条件，讨论了样品色泽、酸值及闪点的影响因素。

The reaction process of the curing system (Epo2/MeHHPA, Epo3/MeHHPA) were also studied by DTA and determination of gel time, and carefully analyzed. The parameters got by the Kissinger method, Ozawa method and Flory theory can optimize the curing process of these novel epoxy.

采用DTA和凝胶时间测定方法研究了这两种新型环氧树脂体系的固化反应过程，计算了固化反应的动力学参数，为该环氧树脂体系固化工艺的确定提供了理论根据。

According to the problem of the long processing time and testing cycle for food measurement, the feasibility of using one microwave digestion solution to investigate seven elements in food was discussed.

摘 要：针对食品检测前处理时间和检测周期过长的难题，用硝酸及双氧水作为消解溶剂，在设定的微波消解条件下，可以将样品消解完全，消解液中加入硫脲和L盐酸，不需任何处理可直接进行砷等7种元素的测定。

The constant current coulometry as a primary method is recognized in international. Based on Faraday's law of electrolysis, it has been successfully used to determine purity of arsenic trioxide. The measuring results depend directly on the reliability of measuring physical quantities and fundamental constants expressed in SI units, and do not need a reference material for comparison.

高精密库仑滴定法是国际上公认的基准测量方法，该方法根据法拉第电解定律，通过质量、电阻、电动势、时间等基本物理量及法拉第常数来进行三氧化二砷纯度的测定，直接溯源到国际SI单位，不需要用标准物质进行比对。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。