杂质

E., monocrystalline process, cleanliness of silicon wafers before annealing, and eleanliness of annealer, affecting the lifetime and bulk metal contamination by way of the study with SPV method.

因为金属杂质可以通过热过程从硅片的表面扩散进内部，并成为非常有效的复合中心，大大促进载流子的复合，降低硅片寿命，进而影响器件的性能和可靠性。

Sweet almond meal combines with extracts of anthyllis, calendula, chamomile and St.

甜杏仁粉结合黄苜蓿，金盏花和金丝桃提取物，去除污垢和杂质而不使皮肤失去滋润。

Highly impure chalcedony called "the jasper", is one kind includes the impurity not opaque aphanitic quartz.

高浊玉髓称为&碧玉&，是一种包含杂质不不透明隐晶质石英。

Results:The detection limits for asarone were 25 ng respectively.Good resolution for asarone and related substances was obtained.

结果：细辛脑的最低检测限量25 ng，细辛脑与各杂质分离良好。

So, the training and testing speed is fast enough to monitor the atmospherical impurity in air in real time.

网络的训练和测试速度较快，可以更有效地应用于大气杂质气体的实时监测。标签光谱学非线性荧光光谱支持向量机小波变换主成分分析 spectroscopy nonlinear fluorescence spectrum support vector machine wavelet transform principal component analysis

The results given by barbituric acid method were more accurate.

在杂质中甲基糠醛是糠醛的同系物，酮类和醛

A comparison of three chemical analytical methods-gravimetric method of barbituric acid, hydroxylamine hydrochloride method and bro-mide-bromate method-for determination of furfural content was studied.

测定糠醛含量的方法很多，日前同际标准化组织和各国的糠醛标准检验方法均采用化学法，成品糠醛内含有各种微量的有机杂质，据报道。

The forth part is a review about the progress of studies on the chemical constituents from Belamcanda chinensis and Iris species. Fifty-three compounds were isolated from Rhizoma Belamcandae, the rhizomes of B.

采用正、反相硅胶柱层析、凝胶柱层析、薄层制备及HPLC等各种分离方法，从三种药用植物中共分离出68个不同的化合物，其中61个的结构得得以鉴定，另外4个化合物的结构正在鉴定中，3个由于量少且有点杂质未作进一步的鉴定。

Crumb rubber asphalt concrete leachates contain the organic mixture and metallic contaminants,such as, benzothiazole ,2-hydroxybenthiazoles and 2-(4-morpholino) benthiazole, mercury, aluminum .

橡胶粉沥青混泥土沥出液是一种含有苯噻唑、2 羟基苯噻唑和 2 (4 )吗啉代苯噻唑等有机物化合物和汞、铝等金属杂质的混合物。

Under the selected chromatographic operation conditions, the 2,2'-Dihydroxy-1,1'-binaphthyl, 2-Naphthol and other impurities could be separated efficiently.

在选定的色谱条件下，1，1'-联－2-萘酚和2-萘酚等杂质之间具有较好的分离效果。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷