二十烷

The thermodynamics was calculated in detail for dodecane to dodecene by catalytic dehydrogenation at low temperature and high pressure.

较为系统地计算了正十二烷脱氢的主反应在较低温度和较高压力下的热力学数据，并对较高压力下的浓度和热力学函数进行了校正。

The results show that the best addition of OP-10 is 0.10% and it can effectively stabilize the dispersity of the nano-iron/ethanol sol.

结果表明，加入0.10的十二烷醇聚氧乙烯醚对纳米铁颗粒的分散起到很好的稳定作用。

The synthesis of divinyl liquid crystalline monomer 4-undecenyloyloxybenzoyl-4'-allyloxybenzoyl-p-benzenediol bisate and network polymers was described. The chemical structures of the synthesized monomer and network polymers were confirmed by FT-IR spectrum.

以双烯类液晶单体4-十一烯酰氧基苯甲酸-4'-烯丙氧基苯甲酸对苯二酚双酯为交联剂，通过与聚矽氧烷接枝反应，合成了系列网络聚合物P1~P5。

The evaluation of the catalysts in the n dodecane hydroconversion showed that, when the Si/Al rat.

正十二烷加氢转化反应评价表明，在催化剂Si/Al比为 17。

The hydroconversion of n dodecane on the Pt M/SAPO 11 catalyst was investigated in a microreactor.

以正十二烷为模型化合物，在高压微型反应装置上进行了长链烷烃在Pt M/SAPO 11催化剂上的加氢异构化反应规律研究。

Different additives acted differently in the course of fermentation. Dodecane as oxygen vector and cosolvent, Tween-85 as surfactants and structure analog of carbon source, were the most important for the lipase production.

不同的添加剂在发酵的过程中所起的作用不同，正十二烷作为氧载体和溶剂的作用，Tween-85作为表面活性剂和碳源结构类似物的诱导作用，在发酵过程中对脂肪酶能够大量的产生都是至关重要的。

A method for increasing the fermentation production of hyaluronic acid by adding an oxygen carrier of dodecane belongs to the technology field of applying the oxygen carrier to the optimization of the fermentation process.

一种用添加氧载体正十二烷提高发酵生产透明质酸产量的方法，属于氧载体在发酵过程优化中的应用技术领域。

The changes of interfacial viscoelasticity along with measuring time and the effect of partially hydrolyzed polyacrylamide concentration and type viscoelasticity at the interface between PHPAM and dodecane were investigated by means of dilational method.

借助界面扩张流变测量方法，研究了聚合物与正十二烷形成的界面膜特征。

Methods An SE-30 capillary column (30 m × 0.25 mm × 0.25 μm) and a flame ionization detector were used when n dodecane was used as the internal standard.

采用 SE 30 (30 m×0.25 mm×0.25 μm)石英毛细管色谱柱，以正十二烷为内标，进样口温度210 ℃，检测器温度300 ℃的气相色谱测定百秋李醇含量。

Impregnated by Pd, the Si/Al 0.33 sample with enhanced neighboring region has the highest n- dodecane hydroisomerization conversion and selectivity.

样品担载Pd后对正十二烷的加氢异构化反应表明，交界区扩大的Si/Al = 0.33的样品有最高的加氢异构化得率和选择性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。