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Magnesium is a component of the chlorophyll molecule, photosynthesis and serves as a cofactor in most enzymes.

是合成叶绿素和光合作用的必需元素,也是活化多种草坪酶的必要元素。

Magnesium is involved as a cofactor in many enzyme transfers.

是许多酶转变的辅助因素。

MgO thin films were successfully prepared on Si substrate by a novel and simple Sol-Gel method. The results indicated that collodion is a key element to form stable MgO sols. The structures of MgO films are closely related to the amount of collodion and the annealing temperature.

摘 要 以硝酸为起始原料,胶棉液为添加剂,在Si(100)衬底上成功地制备MgO薄膜,结果表明,胶棉液是形成MgO溶胶的关键组份;薄膜的晶体结构与胶棉液的含量及退火温度有关。

Field methods for the determination of phosphor, calcium and magnesium by microbead colorimetry were developed.

介绍了微珠比色测定磷、钙、的野外现场快速分析方法。

Suitable metals and alloys include aluminium, bronze, beryllium, chromium, columbium, constantan, copper and copper alloys, gold, nickel and nickel alloys, lead, magnesium, molybdenum, niobium, platinum, silver, stainless steel, mild steel, tin, titanium, tungsten, vanadium, zinc and zirconium.

适用于金属和合金包括铝,铜,铍,铬,铌,镍铜合金,铜及铜合金,金,镍和镍合金,铅,,钼,铌,铂,银,不锈钢,低碳钢,锡,钛,钨,钒,锌,锆。

OF super grade, Grade I and II is exported. Fine talcum powder is of high whiteness in very fine granula tion which feels soft and slippery, so it is used in hitech fields, such as paint and coating industry, it is also used in paper making industry. Besides calcine talcum powder from 200 mesh to 1250 mesh is used in china and pottery industry. The following kinds such as Qixia3-grade blocks, 3-grade grains, 4 grade block and 4-grade grains are used as raw materials of china and pottery products. When 15% 80% of talcum powder is added in porcelain ,the Final china products is of very heat expansion, but of high strength, transparency and brilliance in colure and of very high percentage silicon , alg but of very low percentage of iron and aluminium.

特、一、二级产品90%以上出口;超微细滑石粉具有较高的白度、极细的微粒,柔软而有滑腻感,主要应用于高新技术领域,在油漆、涂料工业中用作体质填充料,在造纸工业中,用于涂层和涂料,可以改善纸张光泽和着墨性等;200目—1250目煅烧滑石粉主要应用于陶瓷釉面等;栖霞三级块、三级小粒、四级块、四级小粒是陶瓷生产的主要原料,在瓷土中掺入15%—80%的滑石粉,制成的各种瓷器,具有极少的热膨胀和温膨胀性,有强度高、不龟裂、增强韧性及透明度高、色彩明亮美丽等特点,并且以特别高的硅、和特别低的铁、铝含量而闻名陶瓷行业。

One common measure of minerals is water hardness, the sum of the dissolved calcium and magnesium.

矿物质含量的一个常用指标是水的硬度――溶解在水中的钙和的总量。

In this work, the digital analysis of six Al-based standard alloy samples with different content of Mg has been performed. Using spectra of Mg 518.36 nm as the analysis spectrum line, Cu 510.55 nm and Fe 510.75 nm as comparison spectrum lines separately, quantitative analysis has been made.

对6种不同元素含量的铝合金标准样品进行了数字化分析测定,探索了选用Mg 518.36 nm作为分析谱线,分别选用Cu 510.55 nm和Fe 510.75 nm作为比较谱线进行定量测定的方法。

Lare dose of puerarin p ur injectin pl us potassium magesium aspartate is q uite effective against conge stive heart ...

结论葛根素联合门冬氨酸钾是治疗CHF的有效药物。

The invention discloses a preparing method of bacillus alcaligenes strain Alcaligenes sp., CCTCC No.M206121 of degraded o-nitrophenol, which comprises the following steps: allocating inorganic salt culture medium with dibasic sodium phosphate, monobasic potassium phosphate, manganese sulfate, copperas, addex-magnesium, calcii chloridum, blue copperas, white copperas and hydrogen dioxide solution; adjusting pH value; sterilizing under high temperature; enriching bacterial; sampling from sludge; allocating suspending liquid with soil sample and inorganic salt; seeding into ortho-nitrophenol fresh organic salt culture medium with finite volume seeding quantity; keeping the temperature; culturing on shaker; getting enriched culture; separating and purifying enriched culture in LB solid culture medium.

本发明公开了一种降解邻硝基酚的产碱杆菌菌株及制备方法,产碱杆菌为Alcaligenes sp。,CCTCC No.M206121。其制备步骤是:首先是配制无机盐培养基,成分为磷酸氢二钠、磷酸二氢钾、硫酸锰、硫酸亚铁、硫酸、氯化钙、硫酸铜、硫酸锌和双蒸水,调pH值高压灭菌;其次是菌种的富集,从污泥中取样,将土样与无机盐培养基配制成悬浮液,将悬浮液以一定体积接种量接种到含邻硝基酚的新鲜无机盐培养基中,恒温,摇床培养,获富集培养物;第三是将富集培养物在LB固体培养基中分离和纯化。

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推荐网络例句

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。