反应率

We also find that CuBr2 could also promote this cyclization reaction to give compounds 56 and 57 in 36 and 26 % yields.

同时我们也发现在上述的条件中加入二溴化铜进行催化反应可以得到化合物56和57，并且其产率提高至36和26 %。

The influence of reaction time,dosage of catalyst and molar ratio of cyclohexanol/acid were investigated in the presence of copper sulfate used as catalyst.

在较优催化剂CuSO4.5H2O催化下，考察了反应时间、催化剂用量、醇酸比等因素对酯化率的影响。

The effects of the molar ratio of potassium bromide to cyclohexanol, the amount of water and concentrated sulfuric acid, and reaction time on the yield was investigated.

考察了溴化钾与环己醇摩尔比、水用量、浓硫酸用量、反应时间对产率的影响。

A novel isomer of furazano energetic compound 3,4-diaminofurazanofuroxan was synthesized by the dimeric ring-close reaction of transitional intermediate 3-amino-4-cyanofurazan oxide after the energetic compound 3-amino-4-chloroximinofurazan was treated with diluent alkali at low temperature, The yield of DAFF isomer could be over 66.3% and its single crystal was cultivated.

将含能化合物3-氨基－4-氯肟基呋咱在低温下用稀碱处理后发生过渡中间体3-氨基－4-氰基呋咱氧化物的二聚关环反应合成了新型呋咱类含能化合物3，4-二氨基呋咱基氧化呋咱异构体，产率达66.3%。

The reason for deactivation of supported n-Bu2SnO catalyst has been found out.

在适宜的反应条件下，n-Bu_2SnO/SiO_2催化剂上，DPC的产率为21.8％。

A high efficiency decalcification agent without phosphorus matter or metal content has been developed for Liaohe crude with high calcium content,and calcium in the crude before and after decalcification are analyzed by atomic absorption spectrometry.

针对辽河高钙原油研制开发了无磷不含金属的高效脱钙剂，利用原子吸收光谱对原油中的钙含量进行分析，考察了剂钙摩尔比、注水率、反应温度、沉降时间和搅拌时间对脱钙效果的影响。

Some conclusions were summarized as following: wood、 paper、 fabric and kitchen rubbish have the resemble pyrolysis characteristics; it is obvious that plastic"s decalescence happened during it"s pyrolysis process; the range of τ_max from great to small in sequence is plastic、 rubber、 fabric、 paper、 kitchen rubbish and wood.

其次，本文对垃圾典型组分的快速热解特性作了研究，并同程序升温时的热解特性作了比较，得到以下一些结论：木屑，纸屑，织物和厨余，其热解特性具有相似之处，微分转化率曲线均表现为单峰曲线；塑料在反应时存在较明显的吸热现象；τ_max(最大失重率所对应的时间)由大到小依次是塑料，橡胶，织物，纸屑，厨余，木屑。

The results show that the demanganization and desiliconization rate are as high as 80~90% in a best temperature of 1500℃; if more agents are added, decarburization reaction will appear with formation of foam slag.

结果表明，铁精矿A的最佳适用温度为1500℃，最高脱硅脱锰率均达80%～90%，进一步提高加入量只会促进脱碳反应的进行，从而生成泡沫渣。

How to improve denitrification process was the key to enhance nitrogen removal rate.

改善条件以促进反硝化反应是提高地下渗滤系统总氮去除率的关键。

The results revealed that the denitrification optimal pH and temperature was at pH 7.5 and 30℃.

在实验结果中，最佳脱氮的酸碱度为 pH 7.5、而脱氮菌最适生长温度为30℃，在持续反应96 小时每12 小时检测一次，硝酸氮从 3500 ppm 降至240 ppm ，其脱氮率为90﹪以上。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！