试验物

Molecular weight of Chodatells sp. is about 6000, and about 9700 for Nitzschia sp.. After treatment with potassium permagnate and ozone, no significant change was found in the MW of their EPS.

经实验分析绿藻的分子量约为6000；矽藻的分子量约为9700，使用高锰酸钾或臭氧进行氧化试验后，其胞外物分子量并没有显著的变化。

Based on the genomic DNA extracted from Ochotona curzoniae, the effects of the main reaction system elements such as Mg(superscript 2+), dNTPs, primer, template DNA, Taq DNA polymerase and annealing temperature were presented by single factor experiment.

方法］以高原鼠兔基因组DNA为模板，通过单因素试验，对体系中的模板浓度、Mg(上标 2+)浓度、dNTPs浓度、Taq酶用量、引物用量、退火温度进行探讨。

In acid pulp, the depressing abilities of reagents on diaspore are in the order of hydroxamic acid starch＞dialdehyde starch＞carboxymethyl starch＞cationic starch＞primary starch. In addition, hydroxamic acid starch and carboxymethyl starch can activate kaolinite without influence on the recoveries of pyrophyllite and illite, so the two reagents have great potential and prospect to be the depressant of diaspore and the activator of kaolinite in bauxite reverse flotation.(3) By oximation of the copolymer of acrylamide and methyl acrylate, hydroxamic acid polyacrylamide is synthesized.

3对丙烯酰胺和丙烯酸甲酯的共聚物肟化制得氧肟酸聚丙烯酰胺，将它同非离子聚丙烯酰胺、阴离子聚丙烯酰胺、阳离子聚丙烯酰胺和两性聚丙烯酰胺分别应用于四种矿物的单矿物浮选试验，结果显示，改性聚丙烯酰胺对一水硬铝石、高岭石和伊利石均具有活化作用，其中，药剂对高岭石的活化最强，使它的回收率在整个pH值范围达到80％左右，在一定pH条件下超过一水硬铝石的回收率，解决了高岭石难浮选的问题。

In addition, the coordination number of coordination complex formed by phosphorus pentafluoride and aether was calculated and the number decreases from 2.04 to 0.8436 when temperature rises from 0℃ to 30℃; the equation of dissolving rate was also acquired: Y = Bi+2 BiX.

此外还计算了五氟化磷与乙醚形成缔合物的配位数，当T从0℃～30℃时，其值为2.04～0.8436；从试验中得出了不同温度下的溶解速率方程：Y′=B_1+2 B_2X。

By the polycondensation of amino acid 5-fluorouracil -1, 3-dipropyl esters with bis (2-chloroethyl) phos- phoramidic dichloride in the presence of 〓 or in vacuo, ten new polymers containing 5- fluorouracil, nitrogen mustard and amino acid were synthesized.

将1，3-双-5-氟尿嘧啶与二氯膦甲酸乙酯或二氯膦乙酸乙酯在DMF中反应制备得到20个三元共聚物，体外抗肿瘤试验表明：含有甘氨酸、缬氨酸、苯丙氨酸和酪氨酸的聚合加显示了一定的选择性，并且分析讨论了生物活性与结构之间的关系。

The photooxidative degradation of Direct Fast Scarlet dyes in aqueous solution under solar irradiation by H 2O 2/ferrioxalate complexes has been studied.

以 H2 O2 /草酸铁络合物作光氧化剂，利用太阳光对水溶液中的直接耐酸大红进行了光氧化降解试验研究。

A stereo pair of SPOT-5 imagery acquired in across-track mode is selected and used. The empirical results have shown that the proposed geometric model, compared with the original model which considers the CCD line-scanner side watch angle as a constant, can improve the x-coordinate accuracy of image points, and can also raise the height accuracy of object space coordinates significantly while maintain the same level of the planimetric accuracy.

经对一SPOT-5异轨立体像对的试验表明，利用改进的几何模型和视CCD线阵列侧视角为常数的仿射变换模型对立体影像进行几何处理，前者较后者的像点x坐标精度有一定的改善，物点的高程精度有所提高，平面精度两者基本一致。

The experiment was conducted to study the effects of digestible energy and true digestible lysine on performance, composition of gestation tissue and hormone levels of primiparous sows during early gestation (mating-on day 84 of gestation), and to find out optimal requirement for energy and Lys content of primiparous sows during early gestation.

本试验旨在研究日粮消化能和真可消化赖氨酸含量对初产母猪妊娠前期（配种～妊娠第84天）生产性能、妊娠物组成和血液激素水平的影响，得出初产母猪妊娠前期能量和赖氨酸的适宜需要量。

The allelopathic effects of the volatiles, water extracts and volatile oils from the Michelia maudiae fresh leaves on the seed germination and seedling growth of Robinia pseudoacacia, Raphanus sativus and Sorghum sudanense were studied in this paper.

以刺槐、萝卜和苏丹草3种植物作为受体，通过种子萌发及幼苗生长试验，研究7年生深山含笑新鲜叶片自然挥发物、水浸提液和挥发油的化感作用。

In order to ascertain the causes and mechanisms of corrosion and abrasion failure,the demonstration analyses and experiments such as macro/microscopy and corrosion substance composition analyses were carried out on the broken section of the man-hole door of refeed valve and air-hood .

重点对返料阀入孔门盖及风帽吹气管断口的宏微观形貌、微区成分、腐蚀物组成等进行表征分析和试验，确定腐蚀磨损产生的原因及腐蚀机理；最后根据实际状况，提出相应的预防措施和建议。

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。