cymene是什么意思

网络释义

用法例句

Determination of p-Cymene in essence oil of Origannum vulgare by HPLC;

高效液相色谱法测定不同产地牛至药材中对-聚伞花素的含量

Determination and correlation of atmospheric VLE data of α-pinene+β-pinene+p-cymene;

α-烯+β-蒎烯+对伞花烃常压汽液平衡测定与关联

Determination of Excess Enthalpies for Binary Systems ofα-Pinene+p-Cymene and β-Pinene+p-Cymene;

α-蒎烯+对伞花烃和β-蒎烯+对伞花烃二元体系超额焓的测定

Measurement of the excess enthalpies for β-pinene+p-cymene binary system;

β-蒎烯+对伞花烃体系超额焓实验测定

Quantitative determination of p-cymene and it s capsules by gas chromatography;

气相色谱法测定对-伞花烃及其胶丸的含量

elliottii pine gums for the preparation of disproportionated rosin and p-cymene over Pd/C catalyst were studied.

以Pd/C为催化剂、马尾松和湿地松松脂为原料并利用其自身所含松节油作溶剂进行催化歧化反应制备歧化松香和对-伞花烃的研究。

By discussing the reaction mechanism for preparation of p cymene from α pinene and using L 9 (3 4) orthogonal array, the liquid phase reaction conditions and its catalyst were determined.

通过对从 α-蒎烯制取对伞花烃的反应原理的讨论 ,初选了液相反应的主要试验条件 ,采用L9(34 )正交表设计出试验方案及对比试验 ,确定了α-蒎烯制取对伞花烃的液相反应条件及对氢转移催化剂进行了比较。

9%),p cymene (14.

精馏分离后可以得到桧烯、对伞花烃、4 松油醇和桃金娘烯醛混合物等主要产品 ,并探讨了它们的可能用

The suitable catalyst is found, the main factor influencing the content of p cymene in the product is investigated, the repeating usability of the catalyst is also tested, and the optimum condition is acquired.

通过气相催化反应 ,使双戊烯合成对异丙基甲苯即对伞花烃 ,选择了适宜的催化剂 ,探讨了反应温度、催化剂活性组分浓度等因素对产物中对伞花烃含量的影响 ,并对催化剂的重复使用性能进行了考察 ,得出了适宜的工艺条件 ,在此条件下 ,产物中对伞花烃的含量为 79。

Synthesis of p-cymene by D-72 sulfoacid resin catalysis citral cyclization

D-72磺酸树脂催化柠檬醛环化合成对伞花烃

Determination and Correlation of Atmospheric VLE Data of α-Pinene +β-Pinene + P-Cymene;

α-蒎烯＋β-蒎烯＋对伞花烃体系汽液平衡测定与关联

Measurement and correlation of VLE data for α-pinene+limonene and p-cymene+limonene systems under atmospheric pressure

α-蒎烯+柠檬烯和对伞花烃+柠檬烯体系常压汽液平衡的测定与关联

Preparation of p-Cymene by Continuous Catalytic Dehydrogenation of Industrial Dipentene in 20 t/a Scale

工业双戊烯连续催化脱氢反应制备对伞花烃的20t/a放大实验

Reaction process of direct preparation of p-cymene from turpentine over activated bentonite

活性白土上松节油直接制备对伞花烃的反应过程

GC determination of p-cymene in volatile oil from Fruits of Alpinia oxyphylla Miq

气相色谱法测定益智挥发油中p-聚伞花烃的含量

A cyme having two lateral flowers or branches originating from opposite points beneath a terminal flower.

二歧聚伞花序一种聚伞花序，有两个侧花或两个侧枝，其生于顶生花下面两个相对的点

Having, forming, or of the nature of an umbel.

具有伞状花序的，形成伞状花序的，伞状花序的

A branch of an umbel.

伞形花枝序伞形花序的分枝

A compact, cymose cluster of flowers.

团伞花序密集而无柄的聚伞花序

bearing or consisting of or resembling umbels.

产生伞状花序的，由伞状花序组成的，或类似于伞状花序的。

carved acrylic handle for lady's umbrella

雕花有机玻璃女伞柄

Bearing a cyme or cymes.

聚伞花序的开有一个或几个聚伞花序的

any of numerous plants of the genus Begonia grown for their attractive glossy asymmetrical leaves and colorful flowers in usually terminal cymes or racemes.

秋海棠属的任何一种植物，因其平滑、不对称的叶子和成聚伞花序或总状花序的花而被广泛栽培。

A tropical American evergreen tree(Pimenta dioica)having opposite, simple leaves and small white flowers clustered in cymes.

多香果树，众香树一种美洲热带常绿树木（众香树），有对生的单叶和成聚伞花序的小白花簇

Flowers hermaphrodite, small, white, arranged in compound umbels.

花杂性，小，白色，排成复伞形花序。

Effects of Arbuscular Mycorrhizal Fungi on Phytoremediation of PAHs-Contaminated Soil by Medicago sativa and Lolium muhiflorum

丛枝菌根真菌对紫花苜蓿与黑麦草修复多环芳烃污染土壤的影响

Responses of seed germination of 8 ornamental plants to petroleum contamination

8种花卉植物种子萌发对石油烃污染土壤的响应