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In this study, we isolate, purify and characterize endo-β-glucanase by Ascomycete Xylaria regalis. The cellulose-containing medium is used to induce the production of the cellulose-degrading enzymes. When these enzymes are produced at maximum level, we harvest and filtrate the culture medium. The filtrate is purified by anion exchanger column and hydrophobic interaction column (phenyl-650M). The purification fold of endo-β- glucanase increases 4.3 times, the specific activity approaches 3.7 unit/mg, and the recovery is 27.6%, respectively.

为了分离且纯化此株菌产生在培养基中的endo-β-glucanase，先将此菌在cellulose液态培养基中大量培养，在此酵素达到最高峰时，利用滤纸过滤将菌丝及菌液分开，收集粗酵素液，再经过阴离子交换树脂及疏水性层析管柱(Phenyl-650M)等步骤予以纯化，所得到最终酵素纯度为 4.3倍，比活性为3.7 unit/mg，回收率为27.6%。

14 UNIT, LINEAR DESIGN - A unit employing a branch circuit frequency transformer design where operation is not dependent on circuity ."

" 2.14 UNIT， LINEAR DESIGN——使用支线电路频率变压器设计，其运行独立于电路系统的电源单元。"

However, Multi-point control unit, the key equipment of video conference, is usually realized by the way of hardware, which is very costliness.

目前视频会议技术发展的相对完善，而作为视频会议关键设备的多点控制单元（MCU，Multi-point Control Unit）通常使用硬件来实现，价格昂贵。

Here are some of the adjectives from Unit 2 of the coursebook. Give their opposites.

下表所列是主教材Unit 2中学过的单词，写出相应的反义词。

Activity 1 Here are some of the adjectives from Unit 2 of the coursebook.

下表所列是主教材Unit 2中学过的单词，写出相应的反义词。

According to a survey published last year by IBM, a computer giant, and the Economist Intelligence Unit, a sister company of this newspaper, 80% of telecoms executives surveyed agreed that it was essential to embrace convergence within the next three years as a source of longterm revenue growth.

根据计算机巨人IBM和本报姊妹公司the economist intelligence unit联合发布的调查，80％的被调查电信公司老总认为在未来3年内进行网络融合是有必要的，它会成为长期收入增长的源泉。

His replacement, Young Buck, stepped up soon afterward, and the group continued its activity, working on yet more mixt recordings and scoring some big-time success on the "G Unit Remix" to 50's "P.I.M.P.," which also featured Snoop Dogg and got heavy rotation on MTV. Meanwhile, G Unit recorded their debut album, Beg for Mercy, over the course of 2003, and Interscope finally rush-released the album on November 14, preceding it with a lead single,"Stunt 101." 1. G-Unit

三名成员在一起也是非常努力的创作和表演音乐，彼此间的配合也非常默契，同时他们还曾经录制国在小范围内播放的，非常受欢迎的磁带，但是在不久之后Tony Yayo因为非法持有枪支而被宣判入狱服刑，然后就由Young Buck代替了他在G-Unit乐团中的位置，并且一直继续表演和创作说唱音乐。

UNIT 1 Abraham Lincoln abraham lincoln was one of the greatest presidents the usa has ever had. he was an extraordinary man:both humble and ambitious .plodding and piercingly intelligent. his...

20篇文章贯通1-6级词汇前言：使用说明 Unit 1 亚伯拉罕·林肯 010：35 Unit 2 亚伯拉罕·林肯 10：4821：19 Unit 3 高等教育的昂贵费用 21：30 结束 Unit 4 古代的生活 019：10 Uni。。。

15 UNIT, PORTABLE - A unit other than a stationary unit or semipermanent mounted unit ."

" 2.15 UNIT， PORTABLE——不是固定安装或半固定安装电源单元。"

16 UNIT, SEMIPERMANENT MOUNTED - A direct plug-in unit provided with a mounting tab .

2.16 UNIT， SEMIPERMANENT MOUNTED——带有安装片直插电源单元。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。