查询词典 intermediate product

Recently, Hangzhou, second-hand housing market was tepid, which are many reasons, both market factors, there are intermediate factors in the company, but more should be the reasons for the product structure.

最近，杭州，二手房市场也不温不火，其中的原因是多方面的，包括市场因素，有中间因素在该公司，但更应该的原因，产品结构。

HCo 〓-catalyzed hydroformylation and isomerization of allene and propyne Allene hydroformylation favors the linear anti-Markovnikov product in high regioselectivity both kinetically and thermodynamically. The origin of this regioselectivity comes from the enhanced stability of the η〓-allylic intermediate (η〓-CH〓CHCH〓 Co 〓.

HCo〓催化的丙二烯和丙炔氢甲酰化反应及异构化反应 HCo〓催化丙二烯氢甲酰化反应的区域选择性主要由不可逆的丙二烯插入步骤决定，动力学和热力学因素都有利于形成anti-Markovnikov中间物种(η〓-CH〓CHCH〓)Co〓，形成Markovnikov中间物种Co〓是不具有竞争性的。

After all, each stage of the design recipe yields a well-defined, checkable product. If a beginner is stuck, a teacher can inspect the intermediate products and determine what the problem is.

此外，设计处方的每一步都会产生一个定义明确、可检查的结果；如果一个初学者在设计过程被掐住了，教师可以借助清单检查他的中间结果，并判断问题之所在。

Employing acetyl chloride as the electrophile afforded the β-acetoxyvinyl-γ-butyrolactone 3 as the product, which provided an experimental evidence to the mechanism involving the palladium enolate intermediate.

使用乙酰氮作为亲电试剂得到了β－乙酰氧基烯基－γ－丁丙酯3，这一结果为烯醇钯中间体的机理提供了一个实验证据。

For the stepwise mechanism, the ethylene molecule was firstly adsorbed at the Brnsted acid site via π-hydrogen bonding to form a stable complex, which then went through the protonation, leading to the formation of the ethoxide intermediate. Furthermore, the ethoxide reacted with the second ethylene molecule to form the butoxide product.

对于分步反应机理，乙烯分子首先通过π-氢键作用在酸性位形成稳定的吸附络合物，再进一步发生质子化并生成乙醇盐中间体，随后乙醇盐与第二个乙烯分子发生碳－碳键结合形成丁醇盐产物。

In this process, the electrolylic bath with cationic exchange membrance and leas electrode is used. The cathode liquor is oxalic acid, the anode liquor is diluted sulfuric acid. The process above has following advantages with high yield, top quality, lower cost, no "three wastes" pollution, and no oxalic aldehyde in the product. It is a cleaner and environment-friend technology, and is a development trend for production of glyoxalic acid. Complete analytical process for raw materials, intermediate and final products were established.

本论文通过对乙醛酸合成路线的研究，确定了草酸电解法制乙醛酸的工艺路线，此法采用装有阳离子交换隔膜和铅电极的电解槽，阴极电解液为草酸溶液，阳极电解液为稀硫酸，该工艺具有产品收率高、质量好、成本低、无三废污染、产品中无乙二醛等特点，是一条清洁、绿色工艺，是生产乙醛酸的主要发展方向。

Abnormally enhanced absorptions for the methine proton in products of triaryl orthoformate derivatives were also observed in C6D6 , indicating the formation of the product resulted in radical pair intermediate.

在氘苯中，产物三苯基原甲酸酯衍生物的次甲基质子的异常增强吸收，表明该产物由中性自由基对形成。

The phosphine was quickly oxidized by triplet oxygen to phosphineoxide with a free radical chain reaction at relatively low temperature; while at high temperature, the phosphine react with singlet oxygen through a three member ring intermediate to form phosphineoxide and phosphinate as the product.

在相对较低温度时，膦化物与基态氧发生自由基链反应，膦化物很快被氧化为氧化膦；在相对较高的温度，膦化物与激发态氧直接作用，通过三元环状中间体而最终生成氧化膦和次磷酸酯。

With the starting material intermediate titanyl sulfate and meta-titanic acid of titanium white product by sulfuric acid process,the titanium dioxide and iron content have been determined.

以硫酸法钛白粉生产工艺中间体浓钛液和偏钛酸为原料，分析了浓钛液中二氧化钛和铁的含量。

In this paper, aging time of alkali cellulose was confirmed by researching the effect of aging time of alkali cellulose to its ability of withstanding alkali; The effect of temperature, the mass ratio of intermediate to cellulose, time, NaOH concentration on the mass and capacity of product.

研究了碱纤维的老化时间对抗碱能力的影响，确定了碱纤维的老化时间；研究了氢氧化钠的用量、中间体与纤维素的质量比、反应温度和反应时间对产物质量和产物交换容量的影响，并用红外光谱对产物的结构进行了表征。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。