Chern class是什么意思

用法例句

The country of the Xie clan was in Chen and the Chen was established in Western Zhou Dynasty,which changed repeatedly,and eventually fell among Yongjia of Chaos.

在六朝的300余年间,陈郡谢氏自谢衡至谢靖前后凡10余代,世系绵长,子孙繁盛;陈郡谢氏的祖籍陈留阳夏,行政区划几经变更,最后在永嘉之乱中沦陷;之后,谢氏侨居江东,以建康和会稽为两个重要据点发展家族势力,很快成为一流的门阀世族。

To keep CaoYun unimpe ded, Chen Xuan along with other officials harne ssed the Grand Canal effectively.

陈是明朝初期一位很有作为的人物 ,虽非重臣 ,然其对明代社会的贡献颇大 ,主要在于漕运。

Application of oak barrel aging technoloy in red wine aging;

优化橡木桶陈酿工艺在干红葡萄酒生产中的应用

Application of micro-oxygenation in red wine aging;

微氧处理技术在葡萄酒陈酿中的应用

Fermentation experiments were conducted at 28℃by using Angle instant dry yeast, the numbers of the yeast, the soluble solids and the alcohol degree were measured and GC was used to analyze the changes of aromatic compontents in the fermentation and aging.

以巨峰葡萄为材料,利用安琪葡萄酒高活性干酵母在28℃的条件下进行葡萄酒发酵试验,测定了主发酵过程中的酵母菌数、可溶性固形物含量、酒精度并用气相色谱测定了发酵和陈酿过程中芳香物质含量的变化。

Studies on the antioxidation effects of flavonoids from the orange peel;

陈皮中黄酮类化合物抗氧化活性的研究

4% orange peels were added to the basic feed of grass carp.

在草鱼基础饵料中添加0 1%,0 2%,0 3%和0 4%陈皮,45d后测定实验组和对照组的NBT(硝基蓝四氮唑)阳性细胞数平均分别为27 11,33 38,28 61,28 18和18 82,各试验组与对照组有非常显著差异(P<0 01),白细胞吞噬百分数平均分别为57 59,63 04,65 53,71 30和52 31,0 2%组、0 3%组、0 4%组与对照组有非常显著差异(P<0 01),0 1%组与对照组无显著差异(P>0 05),ANAE阳性细胞数平均分别为20 26,33 15,35 68,37 88和17 38,0 2%组、0 3%组、0 4%组与对照组有非常显著差异(P<0 01),0 1%组与对照组无显著差异(P>0 05),表明陈皮作为饲料添加剂可非常明显提高草鱼的免疫功能,添加量以0 2%最佳。

Research advance in artificial accelerating aging of wine;

葡萄酒人工催陈研究进展

Optimization of the Pulverization Technology for Pericarpium Citri Reticulatae during Production of Hospital Preparations;

医院制剂生产过程中陈皮粉碎工艺优选

Extraction of the volatile oil from Pericarpium Citri Reticulatae by supercritical CO_2 extraction: A technical study;

陈皮挥发油超临界CO_2萃取工艺的研究

Study on the process of including volatile oil of Herba Schizonepetae and Pericarpium Citri Reticulatae with β-cyclodextrin;

β-环糊精包合荆芥、陈皮挥发油的工艺研究