查询词典 gum rosin

Lianghe turpentine relative density, refractive index, initial boiling point, distillation range size, optical activity and chemical composition as well as the softening point, acid value, unsaponifiable matter content, ethanol insoluble matter, ash, optical activity and chemical composition and other physical and chemical characteristics of rosin gum were studied.

研究梁河脂松节油的相对密度、折光率、初馏点、馏程体积、旋光度和化学组成以及脂松香的软化点、酸值、不皂化物含量、乙醇不溶物、灰分、旋光度和化学组成等物理和化学特征。

The annual output of gum rosin in China has already been over 500 kt with annual export of around 300 kt.

松香产量已超过 5 0万t/a ，出口约 30万t/a。

As producing gum rosin in China, Yunnan is a younger.

云南是我国松香生产嘀后起之秀。

The reaction of disproportionation of gum rosin catalyzed by AH non-noble metal catalyst was studied, and the effects of reaction temperature, reaction time, particle size of catalyst, and stir speed were investigated.

用AH型非贵金属催化剂催化松香歧化反应，考察了搅拌速率、催化剂粒度、反应温度、反应时间对反应的影响，建立了动力学方程。

Obtained by isomerizing gum rosin with a catalyst.

本产品由脂松香在钯催化剂作用下异构而成。

Determination and Analysis of Gum Rosin, Terpene PhenolicResin and Malic Resin by FTIR Spectroscopy

在句译、词译中专业词汇在线翻译、专业词典词汇的双语例句以及中英文、英汉句子翻译。

Their quality of gum rosin are obtained export license issued by Yunnan Entry-exit Inspection and Quarantine Bureau of People's Republic of China.

今天主要介绍云南比较有代表性嘀几个大厂，他们都是获得了云南省出入境检验检疫局出口答应证嘀企业

That is equal to resource of one hundred million ton gum rosin in the world. But productivity is very low in Yunnan at present.

但日前云南省松脂嘀生产水平粉低，松脂资源只好8%得到开垦利用，丰富嘀自然资源尚未被充沛利用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。