四开

Thepotential energy surface of these reactions were plotted, and the energy barrier of the reaction between THF and secondary oxonium ion was determined to be 182.0.116 kJ/mol.

本文进一步对四氢呋喃阳离子开环聚合反应过程中，氧鎓离子与水反应的机理进行了分析。

Lower leaves entire or repand; fruit torulose, with stellate and subsetose simple trichomes; subapical horns 0.5-1.8(-2.2) mm, erect or divaricate-ascending, straight; valves not extended beyond horns into stylelike apex

下部叶全缘的或残波状；果近念珠状，具和subsetose单；近尖端的角0.5-1.8(-2.2)毫米，上升直立或极叉开，直；在进stylelike先端角状突起以外裂爿不延伸 1 T。 quadricornis 四齿芥

My home a baby born in similar circumstances, the right eye of the lacrimal gland barrier, many眼屎, the doctor said nothing, and if not her that's so, then went to Children's Hospital repatency, but more than two months when I do it with BB security key, the doctor gave me a small opening Rohto eye drops, drop three or four times a day, each massage to her eyes for two minutes, less than a week had, and now that things have not.

我家宝宝一出生，情况也差不多，右眼泪腺不通，很多眼屎，医生说没事的，等她大一点如果还不通的话就去儿童医院做通术，不过两个多月的时候我带BB去做保键，医生给我开了小乐敦眼药水，每天滴三四次，每次给她眼角按摩两分钟，不到一个星期就通了，现在一点事都没有。

Porcelains are loaded and fired in the large sagger and charcoal is put into the separation between the sagger and the outer refractory bricks. The separation is locally Called "fire chamber".

匣底垫四块耐火砖，在大匣的外侧一定距离处砌耐火砖圈体，并在底部开几个孔(以炉体大小而定小孔的多少，俗称&爬火眼&)，用于爬退木炭来降低温度。

I plant and improve the advanced production equipment, materials stress, product variety, fashionable and main products are advertising umbrella, Shatan San straight bone umbrella, the Zhesan, Zhesan three, four Zhesan, child umbrella , Plastic umbrella, golf umbrella, to automatically open the umbrella, hats, umbrellas, gifts, etc., sunny umbrella umbrellas and all kinds of plastic Sanbing, excellent product quality, low prices, sold to the Middle East, and I also plant in the Middle East office.

我厂生产设备先进而完善，用料讲究，产品品种丰富，款式新颖，主要产品有广告伞、沙滩伞、直骨伞、二折伞、三折伞、四折伞、童伞、塑料伞、高尔夫伞、自动开收伞、帽子伞、礼品伞等各类晴雨伞以及各种塑料伞柄，产品质量精良，价格低廉，远销中东，并且我厂在中东亦有办事处。

New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.

用这种方法成功的发现了下列在有机合成中有意义的新反应：(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应；(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物；(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应；（4）重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚；（5）硅醚的光诱导选择性脱硅基反应。

The 4corkscrew of Smee got Tootles in the fourth rib, but he was himself 5pinked in turn by Curly.

斯密的开瓶钻捅着了图图的第四根肋骨，而他自己被卷毛刺伤了。

An elephant, and then between the splayed legs of a

下，然后又走在长颈鹿叉开的四腿之间。

It is discovered that the direct ring rupture channel is the mainpathway during the thermal decompositions of the four tetrazole derivatives.

结果表明，四种衍生物热分解的主要反应途径都是直接开环反应。

The theoretical properties of BTATz were estimated by a B3LYP method based on 6-31G basis set. The stable geometric configuration and bond order were obtained. The vibrational frequencies, IR spectrum and thermodynamics properties under different temperatures were obtained from vibrational analysis, and the relationship between temperature and thermodynamics properties was deducted. Pyrolysis mechanism of BTATz was discussed, and the transition state and activation energy of ring opening reaction of the tetrazole were deducted.

用B3LYP方法，在6-31G基组水平上对其性能进行了计算，得到了其稳定的几何构型和键级；在振动分析的基础上求得体系的振动频率、IR谱及不同温度下的热力学性质，并得到了温度对热力学性能影响的关系式；探讨了其热解机理，推断出四唑环开环时的过渡态和活化能。

By using competitive adsorption of activated carbom to remove unfavorable influence of carbon in carbonaceous gold concentrate on leaching process, the leaching rate of gold concentrate can be improved to 88% as compared with 10%by direct cyanidation.

本文论述了利用活性炭竞争吸附作用，消除含炭金精矿中炭在浸出过程中的影响，使金精矿的浸出率可由直接氰化的10％提高到88％。

The only thing you're ever gonna be king of is King of the Stupids!

你只配做傻瓜的国王！