凝胶

Moreover, the gradient density aerogel was expected to be fabricated in this paper.

进一步对连续密度梯度SiO2气凝胶的制备提出了展望。

These deep-space motes are so small, however, that even advanced microscopes have trouble finding them in the aerogel.

这些深空微尘是如此之小，然而，甚至于先进的显微镜也难以在气凝胶中发现它们的踪迹。

Aerogel is very solid and feels like hard styrofoam to the touch .

气凝胶是很坚固的及触觉上感觉象硬的聚苯乙烯泡沫塑料。

Resorcinol-formaldehyde aerogel is made in a way similar to production of silica aerogel.

间苯二酚甲醛气凝胶是在一种类似生产白炭黑。

Inside the collector was a substance called aerogel to trap particles floating in space.

在该收集器内部装有一种叫做气凝胶的物质，用于捕捉太空中的漂浮微粒。

Occasionally, the automated microscope will have a problem focusing on the aerogel.

偶尔的，自动显微镜在气凝胶上的聚焦会出现问题。

I have probably tried every aftershave, liquid, gel, cream, and lotion available, and none works like Paula's Skin relief.

我有可能千方百计擦，液体，凝胶，膏，并可用洗剂，并没有像保工程的皮肤救济。

We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上，利用传统植化分离手段和现代分离技术，包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱，制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物，其中，2个新化合物和2个己知化合物，并进一步通过现代分析技术IR，ESI-MS，~1H-NMR，~(13C-NMR，HMBC，HMQC，~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是：3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2，6-二甲基-6-O-β-D-吡喃鸡纳糖基-2，7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷，金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷；2个已知化合物结构分别是：金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷，金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。

The grade of table eggs depends to a major degree on the firmness or gel structure of the albumen.

食用蛋的等级主要决定于蛋清的硬度或凝胶结构。

Or so. What's more, the theory of the films shaping and conducting is discussed. There are some key reactions such as alcoholysis reaction in the processing of Sol preparation, dehydration reaction and condensation polymerization when films are coated and consolidation in the process of desiccation and sinter.

左右。分析了溶胶-凝胶法制备薄膜的形成机理和导电机理，对薄膜形成过程进行分析，归纳出形成过程的化学反应主要有：溶胶制备中的醇解反应、浸渍提拉镀膜中的水解和缩聚反应以及干燥和热处理成膜中的聚合、分解与键合反应。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。