芳芳

Treatment of the diacetoxy-calix [4] arene with a series of ditosylates in dry MeCN in the presence of NaOH resulted in formation of electron-rich calix [4] areneocrowns, which reacted with 4, 4'-bipyrindinium and p-bis -benzene at room temperature in dry MeCN to afford self-assembling [2] catenanes by π-π stacking interaction.

以杯[4]芳烃为原料，通过三氟乙酸铊将其氧化成醌，醌类化合物在Zn粉、冰醋酸、少量盐酸和过量的乙酸酐中反应得到双乙酰化产物，利用氢氧化钠使其水解，然后再与各种对甲苯磺酸二酯进行环化反应，得到一系列具有富电子空腔的杯[4]芳烃并冠醚。

Fat drippings create smoke that is filled with carcinogenic polycyclic aromatic hydrocarbons, or PAHs. When the smoke envelopes the food, it transfers the PAHs onto the surface of the meat. And when meat, chicken and fish are grilled at high temperatures for long periods of time, compounds inside the food react and create heterocyclic amines, or HCAs. HCAs are worrisome because in lab studies they've been shown to trigger breast, colon and prostate tumors in rats and mice.

滴下来的油脂产生的烟雾充满了致癌的多环芳烃，简称PAHs，当烟雾环绕在食物周围的时候，这些多环芳烃也附着在了食物的表面，当猪肉，鸡肉或是鱼肉在长时间的高温烧烤时，这些食物本身所含有的成分产生了化学变化生成杂环胺类物质，简称HCAs，这类物质相当的麻烦，因为实验室研究发现它们会引起大鼠和小鼠乳腺，结肠以及前列腺部位的肿瘤。

Eight persons by"eight weeks Mu Wang Chun," the story, invited eight paintings at thetime the sea horse painting master cooperation,"Chun Figure 8","G1894 with the" eight colleagues on the signing of the plan to show whathis intention.

以画明志的代表性——《八骏图》。1945年暮春，&甲午同庚会&中的著名画家郑午昌、汪亚尘、吴湖帆、杨清磬，戏剧家梅兰芳、周信芳、洪警铃，文学家范烟桥等八人按&周穆王有八骏&的故事，约请当时海上画坛八位画马高手合作《八骏图》，由&甲午同庚会&八位同仁在图上签署，以表心迹。

Eight persons by"eight weeks Mu Wang Chun," the story, invited eight paintings at thetime the sea horse painting master cooperation,"Chun Figure 8","G1894 with the" eight colleagues on the signing of the plan to show whathis intention.

八骏图》与陈英泉以画明志的代表性——《八骏图》。1945年暮春，&甲午同庚会&中的著名画家郑午昌、汪亚尘、吴湖帆、杨清磬，戏剧家梅兰芳、周信芳、洪警铃，文学家范烟桥等八人按&周穆王有八骏&的故事，约请当时海上画坛八位画马高手合作《八骏图》，由&甲午同庚会&八位同仁在图上签署，以表心迹。

In the presence of Pd_2, NaOMe, and EtOH, a variety of aryl iodides and aryl bromides were coupled with arylboronic acids smoothly in very short time.

Pd_2作为催化剂，NaOMe作为碱，EtOH作为溶剂，一系列的碘代和溴代芳烃都能在极短的时间内与芳基硼酸反应得到相应的交叉偶联产物。

The modern dough modeling art of Jinan rose at the beginning of the foundation of PRC. Then Li Fangge and Li Fangqing, two noted dough kneaders, came to Jinan from Heze and established the first dough modeling organization in China – Jinan Dough Modeling Club. With the further development, the dough modeling art becomes one of the most special local arts of Jinan .

济南的现代面塑创作是从建国初期开始的，当时李芳阁、李芳清两位著名面塑艺人从菏泽来到济南，成立了中国第一个面塑组织——济南面塑社，伴随着一步步的发展，面塑艺术成为济南最具地域特色的艺术种类之一。

And, just like the lavender oil, this aromatherapy essential oil is regarded as one of the safest aromatherapy essential oils to employ.

而，就像薰衣草油、芳香精油这是被视为最安全的芳香精油聘用。

The electronic interaction between the triarylamine units and porphines macrocycle in 4a-c and 10a-c were investigated by UV-vis absorption spectroscopy and fluorescence emission spectroscopy, and the results showed that there was a good energy transfer between triarylamine units and porphines.

经紫外吸收光谱和荧光发射光谱研究表明在化合物4a-c和10a-c分子中三芳胺基团与卟吩母体之间有很好的能量传递，使得三芳胺基团吸收的能量通过卟啉发色团发射出去。

Less preferred metal chelating groups are hydroxides amines which may be aliphatic aryl or heteroaryl; or mercaptans which may be aliphatic aryl or heteroaryl.

次选项金属螯合组的氢氧化物胺可能是脂肪族，芳基或杂；或硫醇可能是脂肪族，芳基或杂。

The study showed that there are marked differences in volatiles between different kinds of tea.

研究结果显示，不同茶类之间在芳香油成分组成和芳香油总量方面均明显差异，具有茶类特征。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。