氢氧化物

In the metal lurgical industry, hydrogen is used to reduce metal oxides and prevent oxidation in heat-treating certain metal s and alloys.

在冶金工业，氢用于在热处理特定金属和合金时还原金属氧化物和防止氧化。

The performances of the hydrogen storage electrode MmNi3.5Mn0.4Co0.7Al 0.4(Mm: mischmetal) modified by mixing it with Fe3O4 and Cr2O3 were studied.

研究了掺杂金属氧化物Fe3O4和Cr2O3贮氢电极MmNi3.5Mn0.4Co0.7Al0.4的电化学性能。

Metal oxides which are present on the catalyst surface are converted in a conditioning step into metal sulphides, which provide the hydrogenation component of the bi-functional catalyst.

出现在催化剂表面的金属氧化物在预处理阶段转化为金属硫化物，该硫化物提供双功能催化剂的加氢成份。

An organophosphorus flame retardant,10-(2,5-dihydroxyphenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide was synthesized from phosphorus trichloride,o-phenylphenol and p-benzoquinone through three-step process.

以三氯化磷、邻苯基苯酚和对苯醌为主要原料，通过三步反应合成了含磷阻燃剂10-(2，5-二羟基苯基)-9，10-二氢-9-氧杂-10-膦菲-10-氧化物。

The characterization of rare earth compound powders,such as rare earth hydroxides,rare earth carbonates,rare earth oxalates and rare earth oxides,are important to the synthesis of rare earth new materials.

稀土粉体(氢氧化稀土、稀土碳酸盐、稀土草酸盐、稀土氧化物和氟化物等)的颗粒性能方面的指标对稀土新材料的开发具有重要意义。

The SBA-15-supported vanadium oxide catalyst has the highest selectivity for propylene because of its larger pore diameter and higher surface area.

SBA-15负载钒氧化物催化剂因具有较大的比表面积和较大的孔径，不仅具有较高的丙烷氧化脱氢催化活性，而且具有较高的丙烯选择性。

An AB_5-typed hydrogen storage alloy, La_(0.65)Ce_(0.28)Pr_(0.02)Nd_(0.05)Ni_(3.8)Co_(0.7)Mn_(0.3)Al_(0.2)MIB_(5.0, was prepared by twin-roller rapid quenching technology. It was thenmodified with transitional metal oxides of Cr_2O_3, V_2O_5, ZnO, NiO and MnO_2 by ballmilling, respectively. The physical and chemical performances of modified alloyswere studied by X-ray diffraction, scanning electron microscopy,electrochemical impedance spectroscopy, galvanostatic cyclic, and cyclicvoltammetry.

采用双辊淬冷技术制备了AB_5合金La_(0.65)Ce_(0.28)Pr_(0.02)Nd_(0.05)Ni_(3.8)Co_(0.7)Mn_(0.3)Al_(0.2)，用V_2O_5、Cr_2O_3、Cu_2O、Fe_2O_3、MnO_2等不同的过渡金属氧化物对该贮氢合金进行表面球磨改性，用XRD、SEM、EIS、恒电流充放电、循环伏安等方法研究改性前后合金晶体结构，充放电性能等。

After treated by i.p. sulfur dioxide derivatives (sodium hydrosulfite and sodium sulfite 3∶1,mol·L -1 / mol·L -1 ) or/and vitamin C, the activities of CAT, SOD and the level of lipid peroxidationin human red blood cells were investigated.

以SO2体内衍生物-亚硫酸盐和亚硫酸氢盐(分子比为3∶1)及抗坏血酸单独或同时处理人血红细胞，并测定红细胞过氧化氢酶、超氧化物歧化酶活性及脂质过氧化水平。

The use to NMR spectrometry to follow the hydroxylation of salicylate could be a new approachl to evaluate the redox potential of many antioxidants.

而以这核磁共振光谱学研究水杨酸氢氧化变化，来评估一些抗氧化物的氧化还原作用是一个新的模式。

Have carried on testing service for nearly 200 hazardous substances, including Asbestos, PAHs, Phthalates, NP/NPEO, AZO, CFC/HCFC/Halons, PVC, PCB, PCT, PCN, CP, Mirex, TPT/TBT/TBTO, Formaldehyde, Heavy metals, can help your products in fully compliance with 'green purchase' request of international buyers.

开展除RoHS以外的近200种有害物质检测业务，包括石棉、多环芳烃、邻苯二甲酸盐、壬基苯酚/壬基苯酚乙氧基化合物、偶氮染料、氟氯烷烃/氢氯氟烷烃/海龙、聚氯乙烯、多氯联苯、多氯三联苯、多氯化萘、短链氯化石蜡、灭蚊灵、三苯基锡类/三丁基锡类/二的氧化物、甲醛、重金属等，涉及范围完全满足各国际买家的&绿色采购&要求。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。