查询词典 sulfureted hydrogen

For Nitro derivatives of methylbenzenes, the pyrolysis initial reaction is an isomerization reaction. It means the alpha C-H bond in methyl rupture, then the Hydrogen atom transfer to the Oxygen atom in nitryl to form isomer.

甲苯的硝基衍生物的热解引发反应为异构化反应——α_中的C-H键断裂，氢原子转移到邻位硝基(-NO_2)中的氧原子上，生成新的异构体化合物。

Nitro derivatives of phenols, the pyrolysis initial reaction is an isomerization reaction It meansthe O-H bond in hydroxide rupture, then the Hydrogen atom transfer to the Oxygen atom in nitryl to form isomer.

苯酚的硝基衍生物的热解引发反应为异构化反应——酚羟基中的氢氧键断裂，氢原子迁移到邻位硝基(-NO_2)中的氧原子上，形成新的异构体化合物。

WithinPMAO LB films,because the distance between the metal ions is no morethan 0.3nm,the carboxylate groups of a molecule form a nanoparticle(the size is less than 0.2nm)by the hydrogen bond or metal ion asthe bridges.

实验表明，在这种高羧基密度的聚合物中，由于羧基距离较近(＜0.3nm)，羧基通过氢键或金属离了为桥在分子内聚集成纳米团簇(＜2nm)。

"Tequila had the right composition of carbon, hydrogen, and oxygen to produce diamonds," explained Apátiga, of the Universidad Nacional Autónoma de México.

"在龙舌兰酒中含有所有制造钻石所需要的碳，氢和氧。"来自墨西哥国立自治大学的Apátiga解释道。

Below liquefied hydrogen piping, from which liquid air may drip, shall be constructed of noncombustible materials.

由于液态空气可能滴落，位于液化氢管道下面的公路和场地应用不可燃材料建造。

Hydrogen was formerly used to fill airship s; nonflammable helium has replaced it.

氢过去用于填充飞船；无味的氦已取代它。

Hydrogen chloride is nonflammable; use extinguishing media appropriate for surrounding fire.

氯化氢是不可燃的；使用适合于周围火焰的灭火媒体。

Hydrogen was formerly used to fill airships; nonflammable helium has replaced it.

氢过去用于填充飞船；无味的氦已取代它。

Hydrophobic - A nonpolar molecule that does not readily associate with water through hydrogen bonds .

-一种非极性分子，这并不容易准水通过氢键。

Our result shows that for block copolymers in nonselective solvents,we can induce the micellization through the hydrogen bonding complexation betweenone of the block and its complementary polymer.

我们的结果表明，嵌段共聚物在非选择性溶剂中，能通过某一嵌段与另外一种高分子之间的氢键作用导致的络合诱导胶束结构的形成。

A solid basis of evidence underpinned her theory.

有利的证据基础支持她的理论。

Apoptosis was detected in both of the cell lines in the absence of folacin, but no necrosis was observed in this experiment.

实验组和对照组中，均未观察到细胞坏死，每种细胞均可看到凋亡细胞；HBL-100在实验组的P53突变型蛋白面积比对照组大（P.05），实验组P53mRNA阳性面积比对照组的大（P.05）。