测定时间

Membrane permeability, malondialdehyde contents and activities of antioxidant enzymes in Kochia prostrata seedlings were studied under different concentrations of salt stress. The result showed that the membrane permeability and MDA contents increased with the increasing of salt concentrations.

通过不同浓度的盐胁迫对木地肤Kochia prostrata幼苗细胞膜透性、丙二醛和3种保护酶活性的测定，获得以下结果：随着盐浓度的增加和胁迫时间的延长，幼苗叶片的细胞膜透性呈递增趋势，且浓度≥150mmol/L时，细胞膜透性与对照有极显著差异(P.01)。

The thin-slice MRI scan were examed at 2,4,6,8,10,12hours on the experimental group.The histopathological changes in different period were studied. Results The MRI intensity as 2 hours after ischemia increased signal intersity on T2W imaging were observed at the head of caudate nucleus and the lentiform nucleus.

经颞开颅阻断一侧大脑中动脉，造成MCA供应区急性缺血性脑梗塞，术后4、6、8、12h行MRI薄层扫描；取出动物大脑观察病理改变，测定不同时相梗塞区T2时间和组织水含量。

Hepatic and renal functions,and tissue biopsy were measured in rats with therapeutic,toxic and lethiferous dose treatment after a period of time.

分别测定治疗剂量、中毒剂量、致死剂量组小鼠在用药一段时间后的肝肾功能，并进行组织病理学检查。

Leaves. Result: Extraction temperature had effect on total flavonoids yield, and ethanol concentration had more obvious effect than extraction temperature. The more natural storage time, the less total flavonoids content, and the average descent rate was 24.74% per year. The flavonoids content from Lithocarpus polystachyus Rehd. gathered between August and October was the highest. The total flavonoids content was higher in the new leaves of Lithocarpus polystachyus Rehd.

结果：乙醇体积分数对总黄酮提取量有显著影响，提取温度对总黄酮提取量有影响；多穗柯自然存放时间越长，总黄酮含量越低，平均每年下降24.74%；不同季节采摘的多穗柯其总黄酮含量以8~10月最高；经对怀化多穗柯嫩叶和老叶中总黄酮的提取测定表明，多穗柯中嫩叶总黄酮含量最高，二年生最低。

To study the mechanism of liver injury by lipid peroxidation and free radical and the protection of metallothionein in acute cadmium toxication,the contents of MT and malonyl dialdehyde,metabolic product of lipid peroxidation,and activities of antioxidases in cadmium-exposed rat liver at different time were determined.

测定镉染毒后不同时间大鼠肝脏的MT和脂质过氧化产物丙二醛的含量及抗氧化酶的活力，观察肝细胞超微结构的损伤，进行自由基(H2O2)的定位。

The changes of Glu content and cyclic nucleotide levels in rat brain were observed by immunoradioassay or microdetermination at different time after injury.

通过氨基酸分析仪与放免法测定伤后不同时间脑组织Glu，cAMP，cGMP含量。

No entire nitrendipine crystals were observed visually in SEM photos. The results of X-ray diffraction and differential scanning calorimetry analysis indicated that the crystalline form of nitrendipine was highly dispersed in microspheres, so as amorphous state. The drug release rate of microspheres could be controlled with adjusting the ratio of solid dispersion carriers and retarding agents formulated. The agitation speed and temperature of the preparation process have distinct effect on micromeritic properties of microspheres. The release profiles of the microspheres were mainly affected by the stirring rate of paddle, the concentration of SDS and pH of dissolution medium. Cooling speed and time, however, have no evident influence on the drug release rate of the microspheres. The dissolution data showed that the mechanism of drug release from microsphers was mainly diffusion-controlled. The incorporation efficiencies of 3 batches sample were exceed 96. 8％, which implied that the current method was suitable for design sustained-release dosage form for poorly water-soluble drug.

在扫描电子显微镜下观察，在微球内外未发现尼群地平的完整结晶，X-射线粉末衍射和差示扫描量热试验结果也显示，尼群地平已经被高度分散在微球中；微球的释药速度可通过调整处方中固体分散体载体和阻滞剂的比例控制；制备温度和搅拌速度对微球的质量影响较大；溶出仪的搅拌速度，释放介质的浓度和pH对微球的释放有较大的影响；制备过程中的冷却速度和冷却时间对微球的释放行为影响不很明显；方程拟合的结果表明缓释微球的释药行为符合扩散机制；测定三批微球样品的包封率均在96.8％以上，表明该法适合于制备难溶性药物的缓释微球。

The caking characteristics of skim milk powder and as mixtures with the additives were determined with mobilometer. The effects of preserving Lime and compositions on the caking characteristics were examined.

应用流变仪测定了脱脂奶粉及其与添加剂混合物的结块性能，考察了贮存时间和组成对结块性能的影响。

The venous blood was drawn to detect the expression of PMN CD11b, plasma MDA concentration and serum myocardiac enzymes.

在不同时间点采静脉血测定PMN CD11b表达、血浆MDA水平和血清心肌酶水平。

Malondialdehyde production and total superoxide dismutase activity in samples of nondependent lung and dependent lung were detected and analysed in both groups on time of OLV 3hr and OLV 6hr to determine whether long-term OLV led to injury of the nondependent lung and whether the injury would be deteriorated by low-dose ALM.

通过对OLV 3hr及OLV 6hr时两组实验犬无通气肺与通气肺组织标本中丙二醛含量及总超氧化物歧化酶活力的测定，观察长时间OLV是否引起无通气肺组织损伤，并同时探讨小剂量ALM对无通气肺组织损伤的影响。

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。