反应率

Using potassium persulfateas initiator and N, N′-methylenebisacrylamideas crosslinker, the graft copolymerization of acrylic acidonto modified cornhusk fiber was carried out.

将玉米秸秆进行提纯改性，采用过硫酸钾为引发剂、N，N-亚甲基双丙烯酰胺为交联剂，使其与丙烯酸接枝共聚合成农用高吸水树脂，通过试验对比最终确定最佳条件为改性玉米秸秆与丙烯酸的质量比为1∶6、丙烯酸中和度为70%、反应时间为4h、烘干温度为60°C；对最佳条件下制备的树脂进行了吸水倍率的测试；对秸秆预处理前后及接枝产物进行了红外谱图分析。

Under these conditions, an equal high yield of methyl ester (97%) was achieved for the crude cottonseed oil and the refined cottonseed oil.

在此条件下，精制棉籽油和粗制棉籽油的最高甲酯得率均可达到97%，且反应物乙酸甲酯和副产物三乙酸甘油酯均对脂肪酶无失活作用。

RESULTS:POT at doses of 200 mg/kg had significant antagonistic effect on the cough caused by mixture of hista...

结果 ：POT 2 0 0mg/kg对氨雾引起的小鼠咳嗽无明显的影响；对乙酰胆碱和组胺混合液引起的豚鼠支气管收缩有极显著的抑制作用(P 。0 0 1 )；对小鼠PCA反应的抑制率为 3 2 。79%；可显著延长卵白蛋白所致的致敏豚鼠呼吸困难、抽搐和跌倒的潜伏期(P 。0 0 1 )。

At one point during a reactor startup and approach to criticality, count rate is noted to

在反应炉启动并趋近临界时，某点的计数率为780cps，而Keff 计算值为0.92。

D. The numerical change in equilibrium count rate is the same.

在渐次加入反应度之后，下列何者是关於平衡计数率的正确说明？

The nitration products of m -cresol were 4-nitro- m -cresol and 6-nitro- m -cresol, and the yields of 4-nitro- m -cresol and 6-nitro- m -cresol were 19% and 30%, respectively.

间甲酚消化反应的产物是4-硝基间甲酚和6-硝基间甲酚，它们的产率分别是19%和30%。

The paper discusses the process conditions of producing synthetic cryolite by carbonation method and the main factors affecting the yield rate of sodium fluosilicate.

本文探讨了碳酸化法合成冰晶石的工艺条件，确定了影响氟硅酸钠纯碱分解率的主要因素，试验结果表明：NaF溶液的精制和〔6F-〕/〔Al〕、反应温度等对冰晶石性能有显著的影响。

The aluminum hydrolysis process has been investigated using chemical analysis as the main testing method, we discovered that temperature plays an important part in the formation of products and its properties, at the same time, the change of reaction with the change of temperature is a reversible process. The experiment further proved that the optimal formation temperature of AlCl3·4Al3·7.5H2O and AlCl3·7Al3·18H2O is 75℃,the productivity rate of products were higher at this temperature and the crystallizability were better.

以化学分析为主要监测手段，对AlCl3·4Al3·7.5H2O和2AlCl3·7Al3·18H2O形态过程进行了研究，结果表明，温度对于产物的行成及性能有很大的影响，并且反应随温度的变化基本上是一个可逆的过程，同时，实验表明 75℃为AlCl3·4Al3·7.5H2O和2AlCl3·7Al3·18H2O析出的最佳温度，该温度下产物的产率较高且结晶状态良好。

The results indicate that the precipitation rate of phosphoric acid is larger than 99% under the conditions of 2530 ℃, the mole ratio of trimeric cyanamide to phosphoric acid 21, two-step precipitation by trimeric cyanamide divided into two portions and separately stirring 60 min.

研究结果表明：在25~30 ℃、三聚氰胺与磷酸摩尔比为21、三聚氰胺分成两份进行两步沉淀、各搅拌60 min为三聚氰胺沉淀磷酸的最佳条件，在此条件下磷酸沉淀率大于99%；在磷酸三聚氰胺沉淀中夹带的氯化钙在固液质量比15、温度40 ℃和搅拌60 min下用水反复洗涤3次后可被完全去除；再将净化后的磷酸三聚氰胺与氨水反应，制得了符合GB 10205—2001标准的磷酸一铵和磷酸二铵产品。

This paper presents qualitative analyses of the electrochemical process of cyanide and Sulphur from industrial waste water with various methods, determines the possible reactions and products, makes a number of quantitative experiments with regard to the factors influencing purification efficiency.

对洗涤水煤气含氰含硫污水，采用电化学法处理前后，用多种方法进行了定性分析，确定了可能发生的反应及其产物。对除污率的影响因素，作了定量测试和分析。

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！