查询词典 jacket crown

Because of the bonded crown ring the catalytic activity of complexes can be improved and the induce period of the oxidation for p-xylene to p-toluic acid was shortened from～ 10h to 0.5～5h, the fashion and position of the bonded crown ring as well as the distance between the crown ring and activity center have distinct influence on the catalytic activity of complexes.

结果表明：1。键连的冠醚环均能显著提高催化活性，并大大缩短反应诱导期5-10h，使TOF从21～60提高到152～222，约增加了5～7倍；冠环的键连方式和部位以及与活性中心的距离对催化活性影响明显；2。

The theory and methods of CAD for three-unit fixed partial dental prosthesis crown bridge are studied, which is based on the design technology of single dental prosthesis crown bridge design. An integrated route of the design of crown bridge is put forward.

本文在基于特征的义齿单冠设计技术基础上，针对三单元固定冠桥的计算机辅助设计理论与方法进行了探索，形成了一套完整的冠桥设计路线。

The crown fractures included partial crown split and full-crown fractures.

冠折包括部分冠折裂、全冠折断。

The complexing properties of compounds 10a, 10b, 11a and 11b toward alkali metal ions were studied by 〓H NMR titration, ESI-MS, UV-Vis spectra, Fluoresence spectra and liquid-liquid extraction. The results show:(1) the 1:1 complexes were formed.(2) The calix-crown 10a, 11a have a higher selectivity for Na〓 ions, whereas 10b, 11b for K〓 ions.(3) The complexing ability toward alkali metal ions was enhanced when the calix-crown have side arm carbonyl.(3) The coordination of alkali metal ions toward phenoxy, carbonyl and crown ethereal oxygens take place by rotation around the carbon-carbon bond of carbonyl and methylene.

六，用〓H NMR滴定，ESI-MS，UV-Vis，Fluorescence，液-液萃取实验研究了10a，10b，11a和11b对金属离子的配位性质，研究结果表明：1）杯芳烃冠醚衍生物同碱金属离子形成了1：1配合物，化合物10a、11a对Na〓具有较高的配位能力，化合物10b、11b对K〓具有较高的配位能力；2）在杯冠醚环的旁边引入带有羰基氧原子的基团作为侧臂参与配位可以加强对碱金属离子的配位能力；3）金属离子分别同苯酚氧，羰基氧，聚氧醚链氧发生了配位，配位过程中侧链基团涉及到了羰基碳与亚甲基碳的碳碳键的旋转过程。

Although Beethoven entered into the upper class, and communicated with some nobles, he never placed himself as their subordination. In 1809, Beethoven lived in Crown Prince Siji Knoff's manor. When asked to play piano for a French invader officer, Beethoven definitely refused the Crown Prince's request. Instead, he ran home in rain, took down Crown Prince's dust and smashed it. In the summer of 1812, Beethoven met Goethe in the sanitaria of Taipliz, Czechoslovakia.

贝多芬虽然进入上流社会，与王公贵族相往来，但他从不置自身于臣仆的地位。1809年贝多芬住在利希诺夫斯基亲王的庄园里，亲王要求他为法国侵略者将领演奏钢琴，贝多芬断然拒绝，冒雨回到自己的家，取下亲王的胸像摔得粉碎。1812年夏，贝多芬在捷克疗养地泰普利茨会见了歌德。

They placed an inflatable jacket around the wreck as it lay on the seabed. Then by filling the jacket with air we raised the wreck to the surface.

他们将一可充气的外盖套套住躺在海底的残骸，然后向套中充气，这样我们就能将残骸捞出水面。

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

As the jacket is bent or twisted, adjacent engagement elements move together into engagement with each other, limiting the bend radius or twist angle of the jacket, and thus of the fiber optic ribbon cable or other protected line.

当护套弯曲或扭转时，毗邻的约束零件一起移动进入彼此咬合的状态，从而限制护套的弯曲半径或扭转角，并借此限制带状光缆或其它被保护的导体的弯曲半径或扭转角。

A paper jacket for a book; a jacket on which promotional information is printed .

书本外面的包装；上面一般印有促销性质的信息。

Bright orange and aerate lilacly the garment wears the abb that passes in bath inside athletic jacket, purple or boots of brindled horse fourth doctor are worn to be under coat of abb cloth with soft nap, a knaggy leather belt is fastened at will at the waist, a suit gray of cap-a-pie is mixed on the shoulder by the ornament the peacock blue place of edge of formfitting jacket to fold is broken.

明亮的橙色和淡紫色的充气衣穿在水洗过的羊毛运动夹克里面，紫色或有斑纹的马丁博士靴被穿在羊毛绒大衣之下，一条多节的皮带随意的系于腰间，从头到脚的一身灰色被点缀在肩上和合身夹克摺边的孔雀蓝所打破。

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！