查询词典 methanol

Meanwhile, it also presents that the Heat treatment cementation using purified natural gas, Methyl alcohol; methanol can not only improve the quality of products, but also enhance the carburizing speed, reduce the gas consumption and extend the lifespan of equipment spare parts and so on.

同时，提出了热处理渗碳采用净化后的天然气、氨水、甲醇不但可提高产品质量，而且还具有提高渗碳和碳氮共渗速度、降低气源消耗和延长设备备件使用寿命等功效。

The possibility of decreasing methanol content in alcohol by employing distillation technique was shown by theoretical analysis and computation. An economic evaluation of a production unit having been reformed in an alcohol plant comfirmed that the technique was feasible economically.

本文通过理论分析和计算表明了用蒸馏技术降低产品酒精中甲醇含量的可能性，并通过对某厂生产装置技术改造过程中的经济核算证明了这一技术在经济上的可行性。

The results indicated that the extraction rate by acetone is the highest,followed that by alcohol and methanol in turn.

结合化学反应，初步认为苦荞麦粉含有黄酮醇类化合物，苦荞麦壳含有黄酮化合物，而甜荞麦壳和甜荞麦粉中可能含有黄烷酮化合物。

The basic biodiesel reaction of converting organic oils into alkyl esters and glycerin involves the reaction of a raw oil with an alcohol (typically methanol or ethanol, although most alcohols can be made to work) and a catalyst (typically sodium hydroxide or potassium hydroxide).

生物反应的基本有机植物油转换成烷基酯和甘油的反应涉及的原料油用酒精（通常是甲醇或乙醇，虽然大多数醇，可向工作）和催化剂（通常为氢氧化钠或钾氢氧化物）。

This pigment is soluble in acid water, alcohol and methanol. The pigment is bluish-green in neuter and yellow under alkaline conditions. The maximum absorptive peak of ultraviolet-visible spectrogram of the pigment is at 530~540 nm.

该色素易溶于酸性的水、乙醇、甲醇，色素在酸性条件下显红色，在中性和碱性条件下显青绿色至黄色；色素在530~540nm处有最大吸收峰；最佳提取溶剂为pH2的55%乙醇溶液。

In contrast, Al2TiO5 can not be synthesized at low temperatures using methanol or tert-butyl alcohol as oxygen donor due to their high chemical reactivity resulting in hydrolysis reaction.

以TiCl4和无水AlCl3为原料，以无水低碳醇为氧供体通过非水解溶胶-凝胶法低温合成了钛酸铝，研究了无水低碳醇种类及用量对钛酸铝合成反应的影响。

An alcohol derived from methanol .

一种使头发成型的胶状物质。

The capillary gas chromatography method with the optimized temperature and time in raising temperature procedure and velocity of carrier flow was established for determinating methanol and fusel oils in alcohol.

建立了一种用毛细管气相色谱法(Capillary Gas Chromatography，简称FID)测定白酒中甲醇和杂醇油的方法，对程序升温中的温度和时间、载气流速等色谱条件进行了优化。

In China, the coal resource is rich, two-thirds of the hydro-electricity resource is yet to be exploited, the applications of nuclear electricity, wind electricity generation, solar energy, and biomass energy have just begun, and there is a very positive prospect for developing alternative energy sources of fuel alcohol, methanol, dimethyl ether, and coal liquefaction.

中国煤炭资源丰富，三分之二的水电资源尚未开发，核电、风力发电、太阳能以及生物质能的应用刚刚起步，燃料乙醇、甲醇、二甲醚以及煤炭液化等替代能源的发展前景广阔。

Was extracted with 95% ethanol at first,and then the ethanolic extract was separated with petroleum ether, ethyl acetate, n-Butyl alcohol and methanol in turn to get four fractions from small to large in polarity. The MTT experiment was made for active screening.

方法青天葵部位提取物的制备主要采用溶剂法，青天葵全草先用95%的乙醇提取，得到的提取物进一步用石油醚、醋酸乙酯、正丁醇、甲醇依次提取，得到极性由小到大的4个提取部位。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。