试验物

Determination of the equilibrium constant of a coordinated compound.

四、铁离子与磺基水扬酸配合物的组成和标准稳定常数的测定，了解用比色法测定配合物的组成和配离子稳定常数的原理和方法，掌握分光光度计的使用及有关试验数据的处理方法。

The effect of soybean and corn root exudates on soil aggregate size and its stability were conducted.

采用土培试验将玉米和大豆植株根系分泌物添加到黑土中，25℃培养30 d，研究根系分泌物对土壤水稳性团聚体大小和稳定性的影响。

In the wet-process phosphoric acid production from the Hubei phosphate ore, one of the bothersome problems is that potassium fluosilicate and sodium fluosilicate scales are liable to form on the filtration system owing to its high potassium and sodium content, which greatly restrains the application of Hubei phosphate ore.

本文首先采用人工冷却系统模拟湿法磷酸生产的真空过滤系统冷却过程，研究垢物的析出规律，实验结果得知：垢物的主要成分为氟硅酸钠和氟硅酸钾，氟硅酸钠首先析出，结构致密，其次是氟硅酸钾，最后是二水硫酸钙，氟硅酸钠对氟硅酸钾有很强的结晶诱导作用；然后在三种生产中常用的不同的材质钼二钛、聚氯乙烯和聚四氟乙烯表面进行结垢试验，发现聚四氟乙烯表面最不易结垢，而在钼二钛表面最易结垢。

Strains M110 and M113 isolated from Aedes albopictus and Armigeres durhami, respectively, which were fatal to suckling mice at 4 days after intracerebrally inoculation and had cytopathologic effects on BHK21 cells, showed a positive reaction to dengue antibody and could be amplified Ly using flavivirus primers and dengue type-4 NS1 gene primers and dengue type-4 NS2a gene primers.

结果 从白纹伊蚊和达勒姆阿蚊中各分离到一株病毒，分别命名为M110和M113，这两株病毒对BHK21细胞能产生明显的细胞病变，脑内接种乳鼠4d左右导致乳鼠死亡。该病毒经血凝、血凝抑制和间接免疫荧光试验提示为黄病毒。分别用黄病毒属特异引物、登革4型病毒NS1和NS2a基因片段特异引物进行RT-PCR扩增、序列测定，证实为登革4型病毒。

In the test of plate growth rate method with alcohol extracts at 15 mg/ml, the inhibitory rates of alcohol extracts from flos caryophyllata, rhizoma belamcandae, citrus grandis tomentosa, cinnamomi cassiae presl, sophora flavescens ait, aucklandia lappa were over 50%. the inhibitory rates of alcohol extracts from flos caryophyllata and rhizoma belamcandae were 90.00% and 81.25%,respectively.

用生长速率法，以提取物质量浓度15 mg/ml对初次筛选出的7种中草药提取物进一步进行抑菌试验，发现丁香、射干、厚朴、肉桂、苦参、木香的乙醇提取物抑菌率都在50%以上，效果最好的是丁香乙醇浸提物，抑菌率达到90.00%，其次是射干乙醇浸提物，其抑菌率达81.25%。

According to the experiment results of degradation in field, degradation mechanism of the biodegradable mulch film can include four stages: the first, the material surface appeared deficiency while the surface area and interstice increased of material in the action of natural environment and microorganism; the second, along with the surface area and interstice of material increased and the gap strengthened, the chemical chain of the high polymer's principal chain broke as a result of the hydrolysis or the enzymatic effect in the action of hydration, causing the molecular weight and mechanics function descended; the third, the molecular of high polymer split the low polymer after its physical mechanical function descended, the material decomposed the fragments, the mass defect intensified; the fourth, the low polymer of fragments form in the natural environment, the microorganism, the biological enzyme became the smaller fragments, thus absorbed by the phagocytes, or further turn into CO2 and H2O due to hydrolysis.

根据田间降解试验结果推测，生物全降解地膜的降解机理可能包括四个阶段：第一，在自然环境、微生物作用下，材料表面出现缺陷，同时表面积增大、空隙增多；第二，随着材料表面积的增大、空隙的增多，吸水性增强，在自水合作用下，高聚物主链由于水解或酶解而使化学链断裂，导致分子量和力学性能下降；第三，在其物理机械性能下降后，高聚物分子链断裂为低聚物分子，材料裂解为碎片状，质量损失加剧；第四，碎片状低聚物在自然环境、微生物、生物酶作用下进一步水解变成尺寸更小的碎片，从而被吞噬细胞吸收，或进一步水解，生成CO2和H2O。

In addition, through Orthogonal Cross, we got know clearly stack retting processing mode, period of employing materials, inocula the kind of and inoculum.

另外，通过综合工艺试验，得到了堆沤处理方式、换料时间间隔、接种物的种类和接种物的接种量4个因素的最佳组合。

The objectives of this study were 1 to investigate the occurrence of salmonella in laying hens and eggs in central Taiwan; 2 to identify the antimicrobial resistance, serotyping, and associated risk factors of the Salmonella isolates; 3 to provide a protocol for control of Salmonellosis.

本研究调查中部地区蛋鸡卵巢与肠内容物检体及鸡蛋内容物的沙门氏菌之阳性率，所得到的沙门氏菌菌株再进行抗菌剂感受性试验、血清分型及相关的危险因子分析。

Through the slump test of steel fiber reinforced concrete mixture, factors which can influence on the fluidity of SFRC such as the quantity of steel fiber volume rate, sand percentage and fly ash quantity were analyzed and the corresponding empirical formula was given.

sand percentage ； fluidity ；通过对钢纤维混凝土拌合物的坍落度试验，分析了在一定条件下，钢纤维掺量、砂率及粉煤灰等因素对大掺量混凝土拌合物流动性的影响，给出了相应的经验公式。

The experimental simulated the principle of operation of hydraulic pressure methane tank, proceeded from effective demand, through the medium of self-command methane fermentation plant, we looked into know clearly that ...

本试验模拟农村水压式沼气池的工作原理，通过自制沼气发酵装置，从实际需要出发，研究了换料时间间隔、接种物的种类、接种物的接种量这3个影响沼气发酵的重要因素对产气效果的影响。

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。