枞

It shows that the magma forming the syenite in the Luzong basin was derived from a deep source, most likely resulting from the partial melting of an alkali basalts along the deep fault, and obviously contaminated by continental crust material.

反映了庐枞盆地正长岩类成岩物质来源较深，是来自富集地幔的碱性玄武岩浆在沿深大断裂上升侵位过程中，受到部分陆壳物质的混染而成。

Conjugated unsaturation of abietic resin acids can be removed through catalytic hydrogenation to overcome the shortcomings of oxidation and color degradation in rosin.

将松香催化加氢可去除枞酸型树脂酸的共轭不饱和性，克服其易于氧化变色的缺点。

Resin is an important biomass resource in China. Abietic type resin acid is the main ingredient of rosin.

松香是我国重要的生物质资源，枞酸型树脂酸是松香的重要成分，它们的分离提纯及其衍生物的合成与生物活性研究对于开发松香深加工产品具有重要意义。

The experimental results show that the thermal oxidation reaction of both rosin and abietic acid are pseudo first order reaction.

枞酸的氧化反应温度为30， 35， 40， 45， 50和55 ℃时，表观速率常数分别为0.0036， 0.0041， 0.0062， 0.0087， 0.011和0.0157 min-1，表观反应活化能Ea为50.29 kJ/mol。

Polymerized rosin is a modified products of gum rosin, contains abietic type acids.

聚合松香是松香的改性产品，含枞酸型树脂二聚体。

The Presence Application and Developing of Resin Industry;2. Study on Modification of Octyl-phenolic Resin by Rosin;3. Abietic type resin acid is the main ingredient of rosin.

松香是我国重要的生物质资源，枞酸型树脂酸是松香的重要成分，它们的分离提纯及其衍生物的合成与生物活性研究对于开发松香深加工产品具有重要意义。

The effects of reaction temperature,reaction time,ultrasound frequency,agitating velocity and HCl amount on the yield and purity of abietic acid were investigated by orthogonal experiment.

通过正交优化实验考察了反应温度、反应时间、超声波频率、搅拌转速、盐酸用量对枞酸单离收率和纯度的影响，确定最佳异构化反应条件为：超声频率47.2 kHz，反应温度55℃，盐酸用量0.06 mL盐酸。

The result showed that the oxidation reaction of abietic acid is first-order reaction during the initial period but then isn't first-order reaction because of oxidant film.

实验结果表明，枞酸氧化反应动力学在初期阶段呈表观一级，后期受氧化膜影响不呈表观一级。

The aim of this thesis is to synthesize some new chiral quaternary ammonium salts and bis-quaternary ammonium salts from the popular material------Chloramphenicoland abietic acid, and then we used these chiral quaternary ammonium salts in some substitution reactions and addition reactions in order to research their catalytic action and asymmetric induction.

本文利用廉价易得的手性物质——氯霉素和去氢枞酸为初始原料，合成了几种新的季铵盐类手性相转移催化剂，扩大了手性相转移催化剂的来源，并把它们应用于取代反应和加成反应，以探讨其催化机理和不对称诱导效应。

Rosin acids ; isomerization ; abietic acid ; orthogonal experiment

松香树脂酸；异构；枞酸；正交实验

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了