查询词典 cymene

The performances of Ceramic-wood composite such as decay resistance, dimensional stability and effloresce resistance were improved owing to the introduction of the cymene, which reducing the inner stress of gel net, meliorating the brittleness and reducing the absorbility of gel.

CH3可以降低凝胶网络内应力，改善凝胶的脆性，同时憎水基团－CH3还可以降低凝胶的吸水性，因而材料的尺寸稳定性、耐风化和耐腐朽性能都得到提高。

In the aspects of research method, we took the method of preparing sol at first and then impregnating the wood to obtain ceramic-wood composite; this method made the wood use efficiently and increased the wood's weight gain percent. The ceramic-wood composite with performances of well decay resistance, dimensional stability, effloresce resistance and high strength was obtained by importing the cymene to the net of gel as the result of co-hydroxylation between MTES and TEOS. Making use of XPS ,we found that the apex of Si2p、O1s、C1s had evident chemical shift , which validated the existence of Si-O-C bonding.Key Words: Sol-gel, Ceramic-wood composite, Modified sol, Ecomaterials

在工艺方法上，采用先制备溶胶，然后浸注木材的工艺方法具有原料利用率高、提高增重率的优点；采用甲基三乙氧基硅烷和正硅酸乙酯共水解的方法，将甲基引入陶瓷化复合木材的凝胶内部，所制备的材料具有尺寸稳定性好、具有耐风化和耐腐朽性，强度高的特点；首次利用X射线光电子能谱，发现了Si2p、O1s和C1s谱峰发生了明显的化学位移，证实了Si－O－C键合作用的存在。

Cis-3-hexen-1-ol, butyl acetate, ethyl butyrate, hexanal, trans-2-Hexen-1-al, propyl propionate that consists of green leaf volatiles and cymene were the most attractive compounds.

顺-3-己烯醇、乙酸丁酯、丁酸乙酯、丙酸丙酯及伞花烃等对光肩星天牛具有较强的正趋性反应。

Our subordinate companies exclusively distribute chemical raw material awarded from province and ministry such as 10,000-30,000 unit amylase, protease, high grade different propyl alcohol, cymene naphthalene, glacial acetic acids, Adipic acid, emulsifier, Sodium hexametaphosphate, industry alcohol, etc.

下属分厂专业生产省优部优淀粉酶1-3万单位、蛋白酶、植酸酶、木聚糖酶、优质异丙醇、甲基萘、冰醋酸、α-乙酰乳酸脱羧酶、乳化剂、六偏磷酸钠、工业酒精等化工原料。

The direct oxidation of p-cymene in acetic acid by oxygen was catalyzed by cobalt catalyst system.

研究了在以冰醋酸为溶剂，以醋酸钴为催化剂条件下，原料配比、温度、压力等工艺条件对对异丙基甲苯氧化性能的影响。

The major constituents were p-cymene,linalool,borneol and α-terpineol respectively.

产于山东沂山的五脉地椒全草挥发油主要成分为对-伞花烃、芳樟醇、龙脑、α-松油醇。

The major components of thymus essential oil were thymol and p-cymene, and it exhibited higher antibacterial activity against Escherichia coli and Staphylococcus aureus.

百里香精油主要成分是百里香酚和对伞花烃，其对大肠杆菌和金黄色葡萄球菌具有较强的抗菌活性。

Results:23 components of thymus essential oil were separated and 9 of them were identified, the main constituents were thymol (44.36%) and p-cymene (31.04%); the diameters of inhibition zones of essential oil towards Escherichia coli and Staphylococcus aureus were 32 mm±0.5 mm and 40.5 mm±1.0 mm.

结果：百里香精油共分离出23个峰，鉴定出其中9种化学成分，主要是百里香酚(44.36%)和对伞花烃(31.04%)；百里香精油对大肠杆菌和金黄色葡萄球菌的抑菌直径分别是32mm±0.5mm和40.5mm±1.0mm。

Chemical ingredient of the product: Through the essential oil analysis by SRIFFI (short for " Shanghai Research lnstitute of Fragment ＆ Flavor lndustry "), the main ingredient of Ledum palustre oil is as follows:β-pinene 、 p-cymene 、γ-terpineol 、 4-terpineol 、α-terpineol 、 sabinenol 、 nyrtenal 、 bornyl acetate 、 cuninal.

二、产品的化学成份：经上海香料研究所对杜香油的初步分析，发现该油中主要成份有：β-守烯、对-伞花烯、γ-松油醇、 4-松油醇、α-松油醇、桧醇、桃金娘烯醛、乙酸龙脑酯、格茗醛、γ-松油烯-7-醇、乙酸愈创木酯等成份。

The main components of the leave essential oil were found to be: elemol (18.22%), 16-kaurene (11.63%), 3-carene (9.66%), sabinene (9.37%), terpinene-4-ol (9.06%),α-eudesmol (5.70%),α-pinene (5.62%), and limonene (5.26%). As for the wood essential oils were γ-cadinene (17.70%),δ-cadinene (13.08%), elemol (9.47%), germacrene D (6.31),α-muurolene (4.02%),β-eudesmol (3.66%), and β-cubene (3.37%).

结果显示，柳杉叶部精油之主要成分为Elemol (18.22%)、16-Kaurene (11.63%)、3-Carene (9.66%)、Sabinene (9.37%)、Terpinene-4-ol (9.06%)、α-Eudesmol (5.70%)、α-Pinene (5.62%)和 Limonene (5.26%)；至於挥散於作用环境之精油成分则以3-Carene (21.03%)、p-Cymene (10.95%)、Limonene (9.49%)、β-Myrcene (9.39%)、γ-Terpinene (9.10%)、4-Carene (8.57%)、Terpinene-4-ol (7.97%)为主要成分。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。