化

Methylated Micrococcus luteus DNA was prepared with different DNA methylation level by using Hha I DNA methylase and Sephadex G-100 gel filtration.

本文用Hha I DNA甲基化酶为工具酶，制备了不同甲基化水平的Micrococcus IuteusDNA，再用Sephadex G-100凝胶过滤将甲基化了的M.L。

Cloudina was known as the first animal acquired mineralized skeleton at the terminal Neoproterozoic,but it was not the only exception that could secret minerals. More evidence of diverse skeletal animals came from deposits before the Cambrian"big bang". A relatively diverse tubular microfossil assemblage is described from the Terminal Neoproterozoic Dengying Formation of South Shaanxi, China.

末元古纪以Cloudina为代表的管状动物化石是目前世界上公认最早的具矿化骨骼的生物类群，在世界许多地区都有发现，但它并不是当时唯一的矿化生物类型，更多的动物骨骼化化石证据在寒武纪大爆发之前的沉积物中时有发现。

Chamberlain and Daladier are following in the footsteps of Germany and Italy and are becoming more and more reactionary, taking advantage of the war mobilization to put the state structure in their countries on a fascist footing and to militarize the economy.

目前张伯伦、达拉第正在模仿德意，一步一步地反动化，正在利用战争动员将国家组织法西斯化，将经济组织战争化。

MEMS can miniaturize and integrate many kind of products,so it has a widely use and very good prospect of industrialization in many fields.

由于该系统能够实现各类产品的微型化、集成化与便携化，因而在天上、地面和海洋的诸多领域有广泛的应用与产业前景。

A series of molybdenum carbide catalysts were prepared using 20%CH4-H2 to carburize molybdenum trioxide at different temperatures. The catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy and N2-adsorption. Their catalytic performance was evaluated in the model reaction of the dry-methane reforming to synthesis gas. Here, the characteration of bulk and surface Mo2C catalysts and its influence on the catalytic performance were described.

以MoO3为前驱物，于20%CH4-80%H2的混合气体(100 mL/min)中，在不同设定终温下进行碳化，制备了一系列不同碳化终温的Mo2C，通过XRD和XPS等手段进行了表征，并对其甲烷二氧化碳重整制备合成气的催化性能进行评价，讨论了碳化终温作为Mo2C的制备参数，与所制备的Mo2C体相、表面特征和催化剂性能的关系。

Firstly, the stope vacancy was monitored using CMS, taking cavity measured data as foundation, cavity three-dimensional model of the stope opening was created using Surpac software and gain the stope three-dimensional configuration and the actual boundary accurately. Then, the stope designed model and ore-rock interface digital terrain model were established according to the stope design material. Finally, using ore-rock interface DTM to cut cavity model or through Boolean calculation among the models, ore remains, mining total volume, mullock, backfilling, pure ore and dilution rate of stope N3-4 were calculated accurately, thus the large-scale stope mining index visible calculation was realized effectively.

采用CMS探测三维采场空区，以空区实测数据为基础运用Surpac构建采空区三维可视化模型，获取采场空区的三维形态和实际边界；运用采场设计资料，建立采场回采设计模型及矿岩边界模型，通过模型间的布尔运算，计算出采场存留矿量、回采总体积、采下废石量、采下充填体量、采下纯矿石量、回采总量及回采贫化率等，从而有效地实现了大规模采场回采指标的可视化计算。

This trend helps to increase the number of multisyllabic words,enlarge affixal words and morphemic syllables,and enrich the Chinese system with diverse word-formation patterns.

它们凭借极强的能产性构成了一系列的词族，对现代汉语词汇系统产生了巨大冲击，具体表现在：现代汉语词语多音节化趋势加强；促进了现代汉语词汇词缀化或音节词素化倾向；大大丰富了现代汉语构词的方式，致使构词方式多样化。

It also classifies them in accordance with the compound method of triazene reagents as follows: reagents diazotizated with sodium nitrite and muriatic acid, reagents diazotizated with nitrosyl positive ion, reagents diazotizated with n-butyrate nitrite.These reagents with high sensitivity and good choice have been widely applied to the determination of microa mounts of cadmium and...

按三氮烯类试剂合成的方法进行分类，分别为在亚硝酸钠和盐酸作用下重氮化的试剂，在亚硝酰正离子作用下重氮化的试剂，在亚硝酸正丁脂作用下重氮化的试剂，此类试剂灵敏度高，选择性好，广泛应用于被镉、汞等过渡金属离子污染的环境样品的分析中。

There are four kinds of dissimilation in the basic education reform in China, namely, teaching conceptualization, teaching authorization, teaching complication and teaching naiveness.

在我国当下基础教育改革实践中存在着四种教学异化，即教学观念化、教学权威化、教学复杂化和教学幼稚化。

The nodal Green's function methods based on the Neumann boundary condition (the second kind boundary condition) in Cartesian geometry is developed and evaluated in this thesis.

本论文发展了Neumann边界条件格林函数节块法NNGFM，并根据先进的组件均匀化技术-广义等效均匀化理论〓引入不连续因子，消除组件均匀化带来的误差，大大提高计算精度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。