查询词典 acid-carbonate

Cyclohexene ; adipic acid ; tungstenic acid ; inorganic acid ; catalytic oxidation

环己烯；己二酸；钨酸；无机酸；催化氧化

Study on technics of synthesize dimethyl fumaricate, firstly prefabricated fumaric acid, with furfural as raw material, V2O5 as catalyst and potassium chlorate as oxidizer then synthesized dimethyl fumaricate through esterication of fumaric acid and methanol with phosphor tungstenic acid as catalyst.

研究了以糠醛为原料，V2O5作催化剂，用氯酸钾氧化制取富马酸，然后以磷钨酸为催化剂，用甲醇进行酯化合成富马酸二甲酯的合成工艺。

The effect of humic acid with the concentration of 850mg/L on improving the drought-resistance of Populus alba x Populus breolinensis seedlings was very obvious, and favorable regulative effects of humic acid with the concentrations of 850 and 650 mg/L on Ulmus pumila seedlings were also observed, but the effect of humic acid on Betula platyphylla seedlings was not distinct.

浓度为850 mg／L的黄腐酸对提高银中杨苗木抗旱性效果明显，浓度为850 mg／L和650mg／L的黄腐酸对白榆苗木抗旱性均有良好的调节作用，黄腐酸对白桦苗木抗旱性的调节作用不明显。

Monodisperse carboxylated superparamagnetic polymer composite microspheres with high magnetite content were prepared by miniemulsion copolymerzation,in which acrylic acid and styrene were used as polymeric monomers,and Fe3O4 microparticles were costabilized by undecylenic acid /oleic acid.

在表面由十一烯酸和油酸共同修饰的Fe3O4磁流体存在下，以苯乙烯和丙烯酸为共聚单体，用细乳液聚合法，制备了单分散，高Fe3O4含量，且表面带有羧基的超顺磁性高分子复合微球。

By developing the optional measurement condition for ruminal fermentation products and comparing the effects of different levels of tannic acid on fermentation and methane production, the proper adding levels of tannic acid in vitro was established. We also examined the characteristics of rumen fluid fermentation and methane production of tannic acid unsupplemented or supplemented with different forage : concentrate ratios by using gas production method.

通过对瘤胃体外发酵系统中单宁酸的生物降解以及对瘤胃内环境影响的研究，初步确立了单宁酸改善瘤胃发酵的适宜添加量及其效果；并探讨了在不同精粗比底物条件下单宁酸对瘤胃体外发酵和甲烷产量的作用。

Fumaric acid, citric acid, succinic acid existed in Urtica Cannabina L. as well as in Urtica diocio. The severe consequence of hepatic fibrosis is cirrhosis liver.

肝纤维化是各种慢性肝病发展至肝硬化的一个必经共同途径，阻止肝纤维化的形成对防止肝硬化具有重要意义。

Based on the experimental evidence, Usnic acid soluble in chloroform and acetone, and Usnic acid with KOH react show yellow in Lichens＇s color reaction; Usnic acid add the mixture of KOH and NaCl react show dark-yellow.

据实验证明，松萝酸易溶于氯仿及丙酮，且在地衣显色反应中，松萝酸与KOH反应显黄色；与KOH和NaCl混合液反应显深黄色。

GC/MS the law separates separately using the gas chromatography - mass spectrum, analyzes in the yellow croaker fish flesh to include the massive unsaturated fatty acid, confirmed the chemical composition, is mainly the vaccenic acid, the octadecenic acid and so on

利用气相色谱-质谱法分别分离，分析出黄花鱼鱼肉中含有大量的不饱和脂肪酸，确认出种化学成分，主要是十八碳二烯酸、十八碳烯酸等

Four amino-acid ligands(glycine, serine, aspartic acid, phenylalanine) was selected to coordinate with vanadyl cation to form amino-acid vanadyl complexes.

选择甘氨酸、丝氨酸、天冬氨酸和苯丙氨酸四种氨基酸与氧钒离子配位形成氨基酸氧钒配合物。

Vanillic acid ,ferulic acid,and p-hydrobenozic acid by using Phanerochaete chrysosporium.

研究黄孢原毛平革菌(P.chrysosporium)对香草酸、阿魏酸、对羟基苯甲酸的降解作用。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。