查询词典 carbon bisulfide

According to the properties of substituted thiourea derivatives,4 symmetric and 12 unsymmetric thiourea compounds were synthesized by reaction of alkyl amine or substituted aniline with carbon bisulfide or some isothiocyanates .

针对不同活性的取代硫脲，采用脂肪胺或取代苯胺与二硫化碳或不同种类的异硫氰酸酯反应，合成了4种对称的和12种非对称的硫脲衍生物。

The sample was extracted with carbon bisulfide, and the extraction was injected into the GC system for analysis after dehydration by sodium sulfate anhydrite.

水样用二硫化碳萃取，萃取液经无水硫酸钠脱水后在适宜的色谱条件下进样分析，5种氯苯类化合物的回收率为92.3%~102.5%，精密度为

By using tabletop femtosecond laser, the pulse which is spatially modulated by the crossed-fiber diffraction passes through the carbon bisulfide. With different input power, the small-scale self-focusing of the pulse was obtained.

具体实验过程是使经过正交细丝的衍射来实现激光的空间调制，然后通过非线性Kerr介质二硫化碳，随着输入功率的增大，超短脉冲开始出现小尺度自聚焦增长现象。

From the aspects of statistical data,diffusibility,odor and toxicity of pollutants,it discussed the main odor pollutants such as hydrogen sulfide,sulfur dioxide, carbon bisulfide ,thior and ammonia etc.

综述了硫化氢、二氧化硫、二硫化碳和硫醇等硫化物的臭味特征、危害性、中毒症状、国家环保部门许可的排放标准及其防治办法。

The residue obtained by pyrolyzing different time was analyzed by elementary analyzer and particle analyzer; Liquid produced by extracting the residue for 24h with Soxhlet extractor through toluene and carbon bisulfide were also resolved by gas chromatography and mass spectrometry, ultraviolet-visible spectrophotometer and Fourier transform infrared spectrometer.

实验首先对煤进行热解，然后对作用不同时间的煤热解残渣进行元素分析和粒度分布分析，并用有机溶剂甲苯和二硫化碳对热解残渣采用索氏提取器抽提24 h，将所得提取液采用紫外-可见光谱仪、红外光谱仪和气质联用仪等手段进行表征。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。