氢

Hydroxy-2,3-dihydro-4-quinolone is synthesized by the basic material of 4-nitrochloro-benzene. It has investigated the routes, conditions and purifies methods in this paper, which provides bases to lucubration and industrialization. This study belongs to the field of medical intermediates.

本文以4-硝基氯苯和丙烯酸为基础原料合成6-羟基-2，3-二氢-4-喹啉酮，并对6-羟基-2，3-二氢-4-喹啉酮的合成条件和纯化方法进行了实验研究，为后续的深入研究和工业化生产提供依据。

LVI lube base oil with low pour point,high viscosity and good stability can be produced by means of hydrogenation acid removal,furfural treatment and hydrotreatment .

克拉玛依油田九区稠油是典型的环烷基原油，采用加氢脱酸、糠醛精制、加氢处理等精制工艺能生产出倾点低、粘度大、安定性好的LVI润滑油基础油。

With the material of magnesium chloride and sodium hydroxide,Magnesium hygdroxide was produced by adding Magnesium hygdroxide seeds .

以氯化镁为原料，以氢氧化钠为沉淀剂，采用加入氢氧化镁晶种的方法制备氢氧化镁。

Malate,lactate,pyruvate and glucose were all good substrates for Rhodobacter sphaeroides to produce hydrogen.

苹果酸钠、乳酸钠、丙酮酸钠和葡萄糖都是球形红细菌产氢的良好碳源，这表明球形红细菌具有利用食品工业等高浓度废水为底物产氢的可能性。

The isotopic composition of hydrogen and oxygen in heavy water are analyzed by using a high-resolution mass spectrometer.

用高分辨率质谱计分析了重水中氢与氧的同位素组成；分析了重水的分子组成、质谱中的单电荷离子；利用高分辨率质谱峰相对强度，计算了重水中的氢氧同位素组成。

This invention provides compounds of Formula; wherein: R is a moiety selected from the group: and n is an integer of 1 or 2; R is selected from hydrogen, amino,-NRR, alkyl of 1 to 12 carbon atoms optionally substituted, aryl of 6, 10 or 14 carbon atoms optionally substituted, alkenyl of 2 to 12 carbon atoms optionally substituted, alkynyl of 2 to 12 carbon atoms optionally substituted, halogen, and a 5 to 10 membered heteroaryl ring optionally substituted, having 1 to 4 heteroatoms independently selected from N, O and S; R is selected from hydrogen, alkyl of 1 to 12 carbon atoms optionally substituted, aryl of 6, 10 or 14 carbon atoms optionally substituted, alkenyl of 2 to 12 carbon atoms optionally substituted, vinyl, alkynyl of 2 to 12 carbon atoms optionally substituted and halogen; R is H, alkyl of 1 to 12 carbon atoms optionally substituted, cycloalkyl of 3 to 8 carbon atoms, bicycloalkyl of 5 to 10 carbon atoms or aralkyl optionally substituted; R is OH or -OH; R and R are each independently H or alkyl of 1 to 12 carbon atoms or when optionally taken together with the nitrogen atom to which each is attached form a 3 to 8 membered saturated heterocyclyl ring; R is alkyl of 1 to 12 carbon atoms optionally substituted; or a tautomer or pharmaceutically acceptable salts thereof.

本发明提供式的化合物；其中：R 1 为选自基团和的部分；n为整数1或2；R 2 选自氢、氨基、-NR 6 R 7 、具有1到12个碳原子的视情况经取代的烷基、具有6个、10个或14个碳原子的视情况经取代的芳基、具有2到12个碳原子的视情况经取代的烯基、具有2到12个碳原子的视情况经取代的炔基、卤素和具有1到4个独立地选自N、O和S的杂原子的视情况经取代的5元到10元杂芳基环；R 3 选自氢、具有1到12个碳原子的视情况经取代的烷基、具有6个、10个或14个碳原子的视情况经取代的芳基、具有2到12个碳原子的视情况经取代的烯基、乙烯基、具有2到12个碳原子的视情况经取代的炔基和卤素；R 4 为H、具有1到12个碳原子的视情况经取代的烷基、具有3到8个碳原子的环烷基、具有5到10个碳原子的双环烷基或视情况经取代的芳烷基；R 5 为OH或-OH 8 ；R 6 和R 7 各自独立地为H或具有1到12个碳原子的烷基，或当视情况与其所连接的氮原子连接在一起时形成3元到8元饱和杂环基环；R 8 为具有1到12个碳原子的视情况经取代的烷基；或其互变异构体或医药学上可接受的盐。

Chicken Meal, Ground Yellow Corn, Ground Whole Wheat, Lamb Meal, Poultry Fat, Natural Flavors, Full - Fat Soybeans, Fish Meal, Dried Eggs, Dicalcium Phosphate, Salt, Dried Kelp, Choline Chloride, Brewer's Dried Yeast, Natural Antioxidants, Vitamin Supplements (E,A,B2,B12,D3), Niacin, Calcium Ascorbate, Calcium Pantothenate, Thiamine Mononitrate, Inositol, Menadione Sodium Bisulfite Complex, Folic Acid, Biotin, Zinc Proteinate

鸡肉，黄玉米，优质麦芽，羊肉粉，家禽脂肪，天然香料，大豆卵磷脂，鱼粉，蛋粉，磷酸氢钙，盐，干海带，氯化胆碱，啤酒酵母干燥，天然抗氧化剂，维生素补充剂（五，甲， b2的， b12的，维生素d3 ），烟碱酸，钙，抗坏血酸，泛酸钙，盐酸吡多辛，肌醇，维生素k3亚硫酸氢钠复合物，叶酸，生物素

Chicken Meal, Ground Yellow Corn, Ground Whole Wheat, Lamb Meal, Poultry Fat, Natural Flavors, Full - Fat Soybeans, Fish Meal, Dried Eggs, Dicalcium Phosphate, Salt, Dried Kelp, Choline Chloride, Brewer%27s Dried Yeast, Natural Antioxidants, Vitamin Supplements (E,A,B2,B12,D3), Niacin, Calcium Ascorbate, Calcium Pantothenate, Thiamine Mononitrate, Inositol, Menadione Sodium Bisulfite Complex, Folic Acid, Biotin, Zinc Proteinate

鸡肉，黄玉米，优质麦芽，羊肉粉，家禽脂肪，天然香料，大豆卵磷脂，鱼粉，蛋粉，磷酸氢钙，盐，干海带，氯化胆碱，啤酒酵母干燥，天然抗氧化剂，维生素补充剂（E，A， b2， b12，维生素d3 ），烟碱酸，钙，抗坏血酸，泛酸钙，盐酸吡多辛，肌醇，维生素k3亚硫酸氢钠复合物，叶酸，生物素

Hydrogen can combined with metals easily with the formation of metalic hydroxides, in high temperature hydrogen will reduced these hydroxides back by binding with oxygen.

氢很容易与非金属元素化合，也能形成金属氢化物，在高温下氢能从许多化合物中夺取氧，使氧化物还原。

Calcium carbonate, Maalox, Mylanta or Milk of Magnesia may also be used.

还可以使用碳酸钙、氢氧化铝和氢氧化镁混合物或氧化镁乳剂。

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。