查询词典 alkaline

The reaction conditions including the molar ratio of methanol to oil, amount of alkaline catalyst used, and reaction temperature and time were optimized by the mono-factor and orthogonal tests.

通过棉籽现场碱催化转酯化联产生物柴油和无毒棉粕，考察了棉仁中水的质量分数、粒径对产物中脂肪酸甲酯的质量分数和棉粕中游离棉酚质量分数的影响；对反应过程中的醇油摩尔比、反应时间、催化剂用量、反应温度进行了单因素和正交实验考察。

The effects of ethanol concentration, alkaline concentration, reaction temperature, reaction time, and other factors to the solubility of granular cold-water-soluble starch were analyzed, and the preparation technology conditions were also optimized.

以小麦A淀粉为材料，采用乙醇－碱处理法制备颗粒状冷水可溶淀粉，在系统分析乙醇体积分数、碱浓度、反应温度、反应时间等因素对颗粒状冷水可溶淀粉溶解度影响的基础上，对其制备工艺条件进行了优化。

Effects of temperature, reaction time and additives on the cation exchange capacity of zeolite synthesized by alkaline hydrothermal reaction of fly ash were investigated.

为衡量粉煤灰沸石的应用性能，本研究主要考察了反应温度、反应时间以及添加剂等水热反应条件对合成粉煤灰沸石产品离子交换性能（CEC，Cation Exchange Capacity）的影响。

In the coarse size range, calcium ions were the largest, and the water extract of the coarse particles showed alkaline reaction.

结果显示：在广州大气粒子中，NO3-主要存在于粗大粒子中，而且和其他物质结合在一起；在粗大粒子中，溶液呈碱性，而且钙离子的含量最大。

In addition, tin oxide nano-crystal with different sizes, such as sphere and ribbon shape, can be prepared by adjusting reaction time, temperature, alkaline amount and concentration of reaction matters.

通过调节反应时间、反应温度、碱的量、反应物浓度可以制备不同尺寸的球状、带状氧化锡纳米晶。

The optimum conditions were found to be: 4.5 g of stearic acid, 75 mL of carrier solvent (having a volume ratio of ethanol to cyclohexane of 1:9), 5 g of alkaline Ca-bentonite, and a reaction time of 1.5 h.

结果表明，获得有机烧失量为36.25%产品的最佳制备工艺条件为：硬脂酸4.50g，分散剂75 mL（乙醇与环己烷的体积比为1：9），碱性土5.00g，反应时间1.5h。

Several studies show that an alkaline reaction is triggered in the body owing to the intake of such raw juices, which eliminates the negative deposits around the joints.

一些研究表明，碱性反应是引发体内由于摄入果汁等原料，从而消除消极存款关节周围。

A sample (660 mg ) of an oligomeric protein of Mr 132,000 was treated with an excess of l-fluoro-2,4-dinitrobenzene (Sanger's reagent) under slightly alkaline conditions until the chemical reaction was complete.

一分子量为132，000的660mg寡聚蛋白样品，在弱硷性条件下用过量的1-氟-2，4-二硝基苯处理，直到反应完成。

The main factors that can affect the strength of base PAN fiber and how its hydrolysis reaction happened in alkaline conditions were discussed.

应用红外光谱仪、元素分析仪、比表面分析仪等对基体聚丙烯腈纤维及其部分水解PAN-COOH型离子交换纤维进行了表征，讨论了影响基体PAN纤维强度的主要因素和碱性条件下的水解反应获得了干态水解PAN纤维的性能指标：强度8.3 cN/dtex，交换容量0.26 mmol/g ， BET比表面积为0.58平方公尺/g的PAN-COOH型离子交换纤维，并较为详细地讨论了该纤维氰基转化成羧基的比率，羧基在纤维表面的排列及最大水解量。

Second, artificial feeding stool: The milk-fed infants, stool or light yellow color was gray soil quality hard, neutral or alkaline reaction.

二、 人工喂养大便：以牛乳喂养的婴儿，大便色淡黄或呈土灰色，质较硬，呈中性或碱性反应。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。