查询词典 natural

By undirect way, using naphtha, LPG or natural gas as raw material makes reformed gas carbureted with natural gas to get the product gas, which is completely suitable to the existing networks and utensils.

以非直供方式，用石脑油、LPG或天然气做原料生产出改质气，再用天然气增热，得到与现有管网、用户燃气具完全适应的产品气。

Unground natural calcium phosphates, natural aluminium calcium phosphates and phosphatic chalk, excl.

apatites 未碾磨天然磷酸钙、天然磷酸铝钙及磷酸盐白垩，磷灰石除外

There are two choices, one is to consume natural resources unrestrictedly, and another is to protecting environment and realizing sustainable development by using natural resources scientifically.

事实说明人类面临两种选择：一是继续无限制地以消耗自然资源、破坏环境为代价来发展经济；二是在保护环境、科学使用资源下实现人类和自然的协调和可持续发展。

BFL's distinctive competence is Natural Yeast in powder: the outcome of an unrushed natural leavening process which confers high quality and distinctive taste to a wide variety of bakery products.

公司最具有特色的产品为粉状的天然酵母。由于其出自天然的发酵工艺，可以用于范围广泛的烘焙产品，保证高质量和独特的风味。

The unstripped gas of the factory is from the Natural Gas Processing Plant of Northwest Mining Area of SPA,and the produsts of the factory are LPG and natural gasolin.

我国最大的中压天然气透平膨胀机致冷回收天然气中液体烃的工厂已在四川石油管理局川西北矿区建成投产，各项技术指标均已达到设计要求。

Urban Remnant Natural Area is left behind in the urban planning area along with urbanization. Its landscape assessment is significant for urban natural preservation. On the basis of URNA's characteristics and in line of the domestic actual situation, psychophysical method, one of the most scientific and credible methods, is chosen to establish the complete landscape assessment system, including acquiring scenic beauty value by SBE method, dividing into different influencing factors by SD method, and setting up their connection model by multiple linear regression analysis. This method is also revised during the application process.

城市自然遗留地是随着城市化的进程在城市规划区内遗留下来的用地，根据城市自然遗留地城市性、自然性和遗留性的特点，结合国内的实际情况，运用目前最严格、可靠性最好的心理物理学方法，以相片为测试材料，采用SBE法获得美景度量值，SD法测定各景观要素量值，以及多元线性回归方法建立2者的关系模型，最终提出了城市自然遗留地景观美学评价完整的方法体系，并修正和完善了心理物理学方法在城市自然遗留地领域的具体应用。

Based on a brief review of semiconductor photocatalytic mechanism and researches in the past 30 years on TiO2 heterogeneous photocatalysis, this paper emphasizes that the natural vanadiferous rutile and its modified products, which have not been investigated by either Chinese or foreign research groups, degrade halogenated organic contaminants. By means of grinding, heating in situ, heating, quenching and electron irradiation, the natural rutile could be modified.

在简述半导体光催化理论及TiO2多相光催化作用近30年研究现状的基础上，重点对国内外一直处於空白状态的天然含钒金红石光催化性能进行研究。

However, Some researches on the response of natural enemies to the habitats and vegetational diversity suggested that the movement ability of the natural enemies plays an important role in determining their abundance in diversified agroecosystem.

也有研究认为：生境与植被多样性对天敌数量的影响，天敌本身的运动迁移能力有非常重要的作用。

Adopts the all- air and natural ventilation system for the opening north wall;the floating floor and isolation table to isolate machine vibration,the sounds insulation materials between two walls to insulate noises in the plant;the air conditioning system separately for the audience area and sports area,the fan-coil unit and floor heating system only for the sports area to adapt the use after the Olympic Games,the natural ventil...

针对1层两个比赛厅北墙敞开的特点，采用全空气空调系统、排风从敞开空间自然排出方案；针对空调机房距4个比赛厅仅一墙或一板之隔的特点，空调机隔振采用浮筑楼板加减振台板、隔声采用双墙中间夹隔声材料层的方案；针对奥运会后观众区改作他用、运动区继续作集训使用的特点，观众区和运动区各有一套空调系统，运动区另设风机盘管和地板供暖；针对步枪、手枪射击时产生弹药味的特点，采用吊顶设通风格栅、高窗设电动开启的自然通风方案。

At last,a convergent and general protocol to marine natural product,as demonstrated by the enantioselective total synthesis of malyngamides O,P,Q,R, 5"-epi-Q and 5"-epi-R bearing terminal vinylic chloride structure,was developed in detail.E,(7S)-7-methoxytetradec-4-enoic acid was prepared using the above described Johnson-Clainsen rearrangement,the terminal vinyl chloride was constructed using Wittig reaction as key step,the pyrrolidone derivative was constructed using L-serine as natural chiral pool.Starting from the synthesis of malyngamides O and P to explore the general route,an aldol reaction of methyl acetate with the vinyl chloride part in the presence of LDA gave the skeleton of amine portion,followed by amidation with the fatty acid finished the synthesis of malyngamide P.

先以malyngamides O和P为试点探索通用合成路线，将乙酸甲酯和烯氯部分在LDA存在下进行aldol反应得到氨部分的骨架，再将手性不饱和脂肪酸和氨部分进行酰胺化反应完成了malyngamide P的合成，将P在碱性条件下进行烯醇甲基化反应完成了malyngamide O的全合成。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。