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the reaction yield
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  反应收率
     The reaction yield of p-methoxybenzaldehyde is 96.8%.
     对甲氧基苯甲醛反应收率为96.8%。
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     The experimental results show that the reaction yield of pyridine can reach 81.73% when Pd loading on catalyst is 5%, reaction temperature is 320℃and n(THFA):n(NH3):n(H2)=1:5:10.
     结果表明,负载量为5%的Pd/Al2O3经固定床反应器,反应温度为320℃,n(THFA):n(NH3):n(H2)=1:5:10时,可使吡啶的反应收率达到81.73%。
短句来源
     The reaction yield was up to 82%, and the purity of HNIW was up to 98% by HPLC.
     利用该方法合成的HNIW,反应收率可达 82 %以上 ,纯度达 98% (HPLC归一化法 ) .
短句来源
     Under the ideal conditions,the reaction yield of chlorine dioxide is 85.6%.
     在较理想的反应条件下,二氧化氯反应收率为85.6%。
短句来源
     tetrahydroxybenzophenone was synthesized with pyrogallol and p hydroxybenzoic acid, and various factors of the reaction were investigated by the orthogonal experiment, and the optimal reaction condition was described. The reaction yield and purity of 2,3,4,4' tetrahydroxybenzophenone were above 83% and 98%.
     以焦性没食子酸和对羟基苯甲酸为原料合成 2 ,3,4 ,4’ 四羟基二苯甲酮 ,通过正交实验对影响反应的因素进行考察 ,确定了优惠反应工艺条件 ,结果表明反应收率为 83% ,产品纯度达 98%以上
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  酯化收率
     The reaction yield is 98%.
     酯化收率达98 %。 。
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  “the reaction yield”译为未确定词的双语例句
     Results and Conclusion The reaction yield reached 72.5% in such condition as following:the ratio of diethyl phosphite and paraformaldehyde was 1∶1.2,reaction temperature was 110℃ and reaction time was 3~4 hours.
     结果与结论亚磷酸二乙酯与多聚甲醛的摩尔比为1∶1.2、反应温度在110℃、反应时间在3~4h,产物收率能达到72.5%。
短句来源
     In the Triton X-100/ n-C5H11OH/H2O systems, the reaction yield is increased with the increase of H2O content or with the decrease of Triton X-100 content.
     Triton X-100/n-C_5H_(11)OH/H_2O体系中,Triton X-100含量的增加导致反应产率降低。 H_2O含量的增加有利于提高反应产率。
短句来源
     At the weight ratio of Triton X-100/H2O being 16/84, the reaction yield of the direct photoisomerization of TS in Triton X-100/H2O micelle is a little lower than that in Triton X-100/n-C5H11OH/H2O microemulsions, and with the increase of the n-C5H11OH content, the reaction yields have a decrease.
     保持Triton X-100/H_2O重量比为16/84,反式1,2-二苯乙烯在Triton X-100/H_2O胶束中反应产率略低于其在微乳液体系中的反应产率,但随着体系中n-C_5H_(11)OH含量的增加,反式1,2-二苯乙烯的直接光异构反应的顺式产率略有减少。
短句来源
     The results showed the reasonable molar ratio for the coupling compound,rongalite and NaOH was 1∶3.5∶10.5,the concentration of NaOH solution was 18%,reacted at 81 ℃ for 0.5 h,in which the reaction yield was higher than 86%,with purity of 99.9%(by HPLC).
     结果表明较理想的反应条件是偶合物、保险粉与氢氧化钠的物质的量比为1∶3.5∶10.5,氢氧化钠溶液溶度为18%,在81℃下反应0.5h,总产率达86%以上,产品纯度为99.9%。
短句来源
     The organotin compounds as a kind of catalyst were used to the iso- merization Of δ-keto nitriles for the first time. The catalytic activity of three organotin compounds[BuSnO_3/2(Cat.1);Bu_2SnO(Cat.2);Bu_3SnF(Cat.3)]was compared. The effect of amount of Cat.1,reaction time and temperature on the reaction yield were investigated.
     本文首次使用有机锡催化δ-酮腈异构化反应成吡啶酮,对三种有机锡(BuSnO_(3/2),Cat.1 ;Bu_2Sno,cat.2;Bu_3SnF,cat.3)催化剂的活性进行了比较,并考察了反应温度、反应时间和催化剂用量等对产率的影响。
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  the reaction yield
The energy dependences of the mean free path of the proton and neutral and charged pions are obtained based on the dependence of the reaction yield on the atomic number of the target nucleus.
      
Copper(ii) salts do not increase the reaction yield.
      
The results of photometric measurements used for monitoring the reaction yield a response time of about 1 min, linearity over a concentration range of 0-1.5 × 10-3 M and detection limit of 5 × 10-5 M.
      
The reaction yield was studied as a function of membrane pore size for 50, 100, 200, and 2000 ? membranes.
      
The reaction yield and the composition of the derived products were studied in acetic acid, trifluoroacetic acid (TFA), and ethanol/TFA.
      
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The sodium salt of diethyl malonate reacts with p-nitrobenzylic derivatives which have poor leaving groups. Through SRNl mechanism the reaction yields c-alkylation products.

本文报道了丙二酸二乙酯钠盐与具有较差离去基团的对硝基苄基衍生物的反应,经由S_(RN)I机理生成碳烷基化产物。

TEA CO_2 laser induced Si-SF_6 and W-SF_8 interactions have been studied and the surface reaction yields have been determined as a function of the laser frequency. The results show that the reaction yields depend strongly on the laser frequency and there is a maximum at the frequency of 942.4cm~(-1), For Si-SF_6 system, the reaction yield also depends on the different planes of silicon single crystals and it shows that the Si(100) is more active than the Si(111) under the same experimental...

TEA CO_2 laser induced Si-SF_6 and W-SF_8 interactions have been studied and the surface reaction yields have been determined as a function of the laser frequency. The results show that the reaction yields depend strongly on the laser frequency and there is a maximum at the frequency of 942.4cm~(-1), For Si-SF_6 system, the reaction yield also depends on the different planes of silicon single crystals and it shows that the Si(100) is more active than the Si(111) under the same experimental conditions. For W-SF_6 system, the reaction yields have been determined as a function of laser fluence and number of laser pulses. The results show that the reaction threshold is 1 J cm~(-2) at the laser frequency of 942.4cm~(-1) and the reaction rate is of first order in SF_6 pressure. These results implies that the infrared laser irradiation plays an important role in these gas-surface reactions and the main step might be the interaction between the vibrationally excited SF_6 molecules and laser stimulated solid surfaces.

本文研究了TEA CO_2激光诱导SF_6与单晶硅和金属钨的表面化学反应。实验结果表明这些反应的反应率与激光频率之间具有明显的依赖关系,在频率为942.2cm~(-1)处反应率呈极大值。对于SF_6-Si体系,反应率与硅的不同晶面有关,在相同条件下Si(100)面与SF_6的反应率大于Si(111)面。对于SF_6-W体系,测定了激光能量密度和脉冲辐照次数与反应率之间的关系,其反应阈值为1Jcm~(-2),并测得该反应的速率与SF_6分压呈一级反应关系。同时,还讨论了上述反应的机理,认为气态振动受激的六氟化硫分子与被激光激活的固相表面之间的相互作用是反应的主要过程。

This paper reported the synthetic technique of propyl 4-Hydroxybenzoate, using strong acid cation exchange resin as catalyst and benzene as carrier of water. The yield can attain to 90%. The type and amount of the resin and the amount of n-propyl alcohol have obvious effect on the reactions yield.

以强酸性阳离子交换树脂为催化剂,以苯为带水剂合成对羟基笨甲酸丙酯,产率可达90%。树脂的类型及用量和正丙醇的用量对反应的收率有显著影响。

 
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