在溶液中

It is argued that the productivity will be improved with the improved measure in the experimental procedure of hexane diacid preparation using potassium permanganate to oxidize cyclohexanol in alkaline solution.

对高锰酸钾在碱性溶液中氧化环己醇制备己二酸的实验步骤提出了改进措施，它可使实验过程简化，实验时间缩短，同时提高产物的产率

Critical temperatures of lyotropic liquid crystalline formed in cellulose diacetate/trifluoroacetic acid and CDA/dichloroacetic acid solutions of different concentration were determined respectively using DSC technique.

用DSC技术分别测定了二醋酸纤维素在不同浓度的三氟醋酸和二氯醋酸溶液中形成的溶致液晶的临界温度，并绘制了相图。

The fluorescence images that RhoCr1 coordinated with Cr~(3+)in PC12 cells showed RhoCr1 to be capable of penetrating into living cells and imaging intracellular Cr~(3+)changesFive probes have been designed and synthesized,where different aldehydes were covalently linked to rhodamine B dyes with diethylamine flexible chains.

吸收和荧光光谱的测试结果表明，探针RhoCr1在Tris-HCI中性缓冲溶液中能高选择性的识别Cr~(3+)并产生了荧光增强，通过对探针光谱性能的测试和TEPN滴定实验表明，探针RhoCr1与Cr~(3+)的络合是一个可逆的过程。

Diffluent sericin powder can be obtained from sericin solution by refining, decolourizing, degrading, concentrating and spray drying. The powder has a much better dissolvability in cold water than cocoon filament sericin.

将蚕丝脱胶后的丝胶溶液经提纯、脱色、降解、浓缩、喷雾干燥等工序，可制成易溶性丝胶粉，在冷水中溶解性良好，与茧丝丝胶有明显差异。

The kinetics of polyurethane formation was studied by reaction of oligomers diols and butadiol with diphenylmethane diisocyanatein the cyclohexone solvent.

用红外光谱法研究了聚氨酯在环己酮溶液中生成的动力学。

In order to investigate the mechanism for this reac-tion, methyl α-bromoacetate or ethyl α-bromoacetate as starting material was added to the solution of phenyl selenoamide in ethanol in 1∶1 or 2∶1 molar ratio under the neutral condition at room temperature. The results indicated that the same product bis or bis diselenide was formed. Byproduct ethyl benzoate was also separated.

为了研究该反应机理，选择α-溴代乙酸甲酯或α-溴代乙酸乙酯在无催化剂、中性条件下，乙醇溶液中与苯基硒代酰胺室温下反应，投料比为1∶1和2∶1，结果也都生成了同一类产物二甲氧羰基甲基二硒醚或二乙氧羰基甲基二硒醚，同时还分离得到了相应的副产物苯甲酸乙酯。

In order to investigate the mechanism for this reaction, methyl α-bromoacetate or ethyl α-bromoacetate as starting material was added to the solution of phenyl selenoamide in ethanol in 1:1 or 2:1 molar ratio under the neutral condition at room temperature. The results indicated that the same product bis or bis diselenide was formed. Byproduct ethyl benzoate was also separated.

为了研究该反应机理，选择α-溴代乙酸甲酯或α-溴代乙酸乙酯在无催化剂、中性条件下，乙醇溶液中与苯基硒代酰胺室温下反应，投料比为1：1和2：1，结果也都生成了同一类产物二甲氧羰基甲基二硒醚或二乙氧羰基甲基二硒醚，同时还分离得到了相应的副产物苯甲酸乙酯。

The dispersity of nano-carbon black in Lyocell spinning solution was studied.

研究了纳米炭黑在Lyocell纺丝溶液中的分散性，制备不同含量纳米炭黑填充的Lyocell纤维，分析了纤维的结构与性能。

But copper dissolves less, and silver、nickel and iron is hardly dissoluble, because of passivation of black Ag〓S and Cu〓S layer and sulfide film of nickel and iron.

在碱性硫脲溶液中，银、铜几乎不溶解是因为黑色的Ag〓S和Cu〓S膜的钝化，铁、镍不溶解亦是其硫化物膜钝化的结果。

Even in carbon disulphide in very dilute solution, the alcoholic spectrum shows some changes in the

即使在很稀的二硫化碳溶液中，醇类光谱还表现出由于与溶剂缔合而产生的OH频率的一些改变。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。