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The checking-out range of silicon and phosphorus is settled through measuring trace silicon and phosphorus in ferromanganese with ICP-AES.

利用ICP-AES测定锰铁中微量硅和的方法,确定了硅和元素的检出限。

The phosphomolybdate blue spectrophotometric determination of phosphorus in ferromanganese was studied.

研究了钼蓝光度法快速测定锰铁中的方法。

The phosphorus content in the first heat steel of converter steelmaking after fettling was higher than normal operation and some times even higher than the standard limitation.

转炉大补炉后冶炼第一炉钢时钢中含量容易偏高,有时甚至超出钢种要求的含量上限。

The results indicated that the magnitude of the activity of catalase in red flour beetle has positive correlation with the resistance level to phosphine, and the resistance to phosphine of the insect may be associated with the activity increase of catalase.

结果表明赤拟谷盗虫体内过氧氢酶的活性大小与其对化氢的抗性水平高低呈正相关,害虫对化氢的抗性可能与过氧化氢酶的活性增加有关。

Mineralogically, the phosphorite is mainly consist of carbonate fluorapatite.

矿石的结构类型丰富多样,主要为颗粒结构块岩和叠层石块岩。

Huaying is engaged in production and supply of phosphoric acid, phosphogypsum and sodium fluosilicate, and made great progress in operation in 10 years.

主要从事酸,石膏、氟硅酸钠等化工系列产品的销售生产业务,公司成立十年来生产经营取得了较快发展,目前正在拓展酸后续加工产品——铵生产、销售及酸出口业务。

Huaying is engaged in production and supply of phosphoric acid, phosphogypsum and sodium fluosilicate, and made great progress in operation in 10 years. The company is developing the production and market of its downstream product MAP and expanding its P.A export business.

主要从事酸,石膏、氟硅酸钠等化工系列产品的销售生产业务,公司成立十年来生产经营取得了较快发展,目前正在拓展酸后续加工产品——铵生产、销售及酸出口业务。

Huaying is engaged in production supply of phosphic acid, phosphogypsum sodium fluosilicate, made great progress in operation in 10 years. The company is developing the production market of its downstream product MAP exping its P.A expt business.

主要从事酸,石膏、氟硅酸钠等化工系列产品的销售生产业务,公司成立十年来生产经营取得了较快发展,目前正在拓展酸后续加工产品——铵生产、销售及酸出口业务。

The results showed that the mobility of free carriers is the key inluencing factor on the electrical conductivity of intrinsic nc-Si: H films but the effect of free carrier concentration is finite, while the free carrier concentration and mobility are both the main influencing factors on the electrical conductivity of phosphorus-doped nc-Si: H films. Its transportability can be reasonably explained by a HQD model.

研究结果表明影响本征纳米硅电导率的主导因素是载流子的迁移率,而自由载流子浓度影响有限;影响掺纳米硅薄膜电导率的因素既包括掺杂产生的自由载流子,又包括迁移率,其输运过程可用量子点隧穿模型合理解释。

Dichlorvos could kill and fumigate insects, but it was unsafe for family use. While malathion and temophos were suitable for vetor control.

在有机杀虫剂中,敌敌畏对昆虫既有胃毒,触杀,又有熏杀作用,但毒性大,在家庭中使用不安全;适用于防制卫生害虫的尚有马拉硫和双硫等,但我国开发应用缓慢。

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