查询词典 camphene

The yield of rosemary oil was 2%-3%. The constituent analysis of rosemary oil showed that the essential oil mainly contains α-pindne, 1, 8-cineole, camphene, camphor, verbenone, borneol, terpinen-4-ol, limonene, and bornyl acetate.

迷迭香精油的得率在2%~3%，主要含有α-蒎烯、1， 8-桉叶素、莰烯、樟脑、马鞭草烯酮、龙脑、4-松油醇、苎烯和乙酸龙脑酸等成分。

Obducta to nine kinds of larch volatile compositions, namely R-α-pinene, S-α-pinene,β-pinene, ocimene, phellandrene, 3-carene, myrcene, camphene and phytol with EAG and Y-tube olfactometer. The results showed that 0.4 molL^(-1), most volatile compositions had significant EAG responses compared with the blank control (P.05), with exception of females to R-α-pinene, males to R-α-pinene and phellandrene.

结果表明：在0.4molL^(-1)浓度下，雌蛾除了对R-α-蒎烯、雄蛾除了对R-α-蒎烯和水芹烯没有明显EAG反应外，对其余挥发物的EAG反应与对照相比差异均达到显著水平(P.05)，并且雌、雄虫之间的EAG反应也存在一定的差异。

Compareing with essential oil of the steam distillation method and the bensine solvent extraction method through GC-MS analysis .The result showed that:the essential oil principal constituent extracted by benzine is camphene,a-pinene,bornyl acetate, limonene, 1-methyl-4-(1-methylethyl)-1,4-cyclohexadiene, myrcene, caryophyllene, borneol.

对巴山冷杉针叶水蒸气蒸馏和石油醚萃取所得精油的GC-MS 分析对比研究结果表明：石油醚萃取精油主要成分为：莰烯，a-蒎烯，乙酸龙脑酯，柠檬烯，1-甲基-4-异丙基-1，4-环己二烯，月桂烯，石竹烯，龙脑。

Among them,--α-Pinene、--β-Pinene、--3-Carene are the three main compounds which account for above 96% of monoterpines, and a small amount of other monoterpines,-limonene, myrcene, camphene, phellandrene.

而对于经常构成蠹类害虫树体引诱剂组分的萜烯类成分在其中占居较高的比重，主要为3种成分--3-蒈烯，--α-蒎烯和--β-蒎烯，占萜烯类总量96％以上。另外还含有少量的柠檬烯、香叶烯、莰烯和萜品油烯等成份。

Results Ten essential characteristic components have been identified in thirteen batches of Amomum villosum samples, and their relative content was (88.15±2.97)%, which are the representative components. The main components were α-pinene, camphene,β-pinene,β-myrcene, limonene, linalol, camphor, isoborneol, borneol and borneol acetate.

结果 13批次阳春砂仁均含有α-蒎烯、茨烯、β-蒎烯、β-月桂烯、柠檬烯、芳樟醇、樟脑、异龙脑、龙脑、乙酸龙脑酯等10个主要特征成分，合计相对含量达(88.15±2.97)%，具有一定代表性。

By means of GC, GC-MS, GC-IR, the reaction products were investigated and the results showed that there are triylene, camphene, limonene, p-cymene, terpinolene -terpinene,-terpinene,-fenchyl formate, linalyl formate, terpinyl formate, bornyl formate and isobornyl formate containing in the products,and linalyl formate was first discovered in addition reaction of a -pinene and formic acid .The content of the main product terpinyl formate is up to 60.4%,the selectivity is 64.5%.

采用GC、GC-IR、GC-MS等对反应产物进行定量和定性分析，结果表明：微波辐射下α-蒎烯与甲酸的反应产物含有三环烯、莰烯、对-伞花烃、α-松油烯、γ-松油烯、柠檬烯、异松油烯、甲酸葑醇酯、甲酸异龙脑酯、甲酸龙脑酯、甲酸芳樟酯、甲酸松油酯。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐