查询词典 reduction

For the purpose of airtightness and reduction of solvent vapor adsorption a rubber stopper lined with polyethylene film was used, instead of al...

汽化瓶不用加铝盖，用反口塞加上聚乙烯薄膜，便可达到密闭及减少吸附的要求。对该方法提出了改进意见，简化了测定手续，提高了准确性。

The key reaction included Aldol condensation,CBS asymmetric reduction and Mitsnobu reaction.

合成过程中的关键反应为Aldol缩合，CBS不对称还原，Mitsnobu反应等。

Experimental results show that the accurate reduction and the average algebraic sum all obtain the preferable values.

最后通过两个经典算例进行了验证，无论在约简的准确性上，还是平均运行代数上都取得了较好的结果。

Birch Reduction, one of the most powerful synthetic methodologies available to organic chemists, provides a bridge between aromatic and aliphatic compounds and makes a huge arsenal of aromatic derivatives readily available for construction of alicyclic molecules, which are possibly converted into various natural products.

Birch还原是联接芳香族和脂肪族化合物的桥梁，它使许多芳香族衍生物成为合成脂肪族化合物，尤其六元脂环天然产物的起始原料，因此Birch还原是有机合成中很有用的方法。

The studies have shown that the reduction of grass, wetlands, waters and rapidly increase in saline alkali soil are the extrusive performance of the ecological environment deterioration in Songnen plain hinterland.

研究显示，草地、湿地、水域的减少和盐碱地的迅速增加是松嫩平原腹地生态环境恶化的突出表现。

Through the in-situ reduction with KBH_4, a series of the silver(0)-alkylamine complexes has been obtained, the special structure and morphology of such kind of complexes will find wide application in the construction of catalysis, photonic or electronic materials.

通过硼氢化钠还原后，获得了系列以金属银为层板的海面状复合物，具有特殊结构的该类化合物可能在催化，光电材料等领域具有广泛的用途。

To reach this goal, all industrialized countries bound by the United Nations Framework Convention on Climate Change are allocated with a certain quota of GHG emission reduction.

为达到限排目标，各参与公约的工业化国家都被分配到一定数量的减少排放温室气体的配额，如欧盟15个老成员国承诺的减排配额是8％。

In some combination of parameters, the value of CO2 emission reduction credit offsets the PV capital cost, although the shared allocation of economic profits yielded by the CDM project between the two countries greatly mitigates the restraints on the project, while at the same time qualifying it for the CDM.

但是，通过CDM项目，可以极大地减小太阳能发电的导入壁垒，CO2的减排收益也可弥补太阳能发电的投资费用，使项目双方都获得相应的利益。

After acetylation of cellulose, the allomorph of CTA changed and the crystallinity decreased; however, amorphism is dominant in CDA obtained by hydrolysis from CTA and spinning resulted in the reduction of crystallinity in CDA.

纤维素乙酰化后形成CTA，其晶型发生变化，结晶度降低；而CTA水解后得到的CDA，无定形占明显优势，纺丝过程中的取向又会进一步降低CDA的结晶度。

The effect of rolling reduction and temperature on the microstructure and mechanical properties of 7050 aluminum alloy was investigated.

研究了轧制变形量和轧制温度对7050铝合金显微组织和力学性能的影响。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。