查询词典 magnesia

Specializing in the production of high-quality magnesia, alumina, magnesia chloride products.

专业生产高品质的氧化镁，氧化铝，氯化镁的系列产品。

The contents of active magnesia in magnesia powder is the most important factor influencing the product performances.

菱苦土中活性氧化镁的含量是决定菱苦土制品性能的最主要因素。

Our company is a magnesia oxide, alumina production and sales of private enterprise, dedicated to a variety of magnesia oxide, alumina development and production.

13969308234我公司是氧化镁，氧化铝生产及销售为一体的民营企业，致力于各种氧化镁，氧化铝的开发和生产。

The effect of the amount of fused magnesia addition on the densification of magnesia chrome refractory was investigated.

考察了电熔氧化镁加入量对镁铬耐火材料致密化的影响。

Our country is one of the main nations which can produce magnesium carbonate and magnesia in the world and the output of magnesium carbonate and magnesia occupies the definite status.

粗放的生产经营方式不但导致了我国大量优势资源的浪费，而且造成了生态的破坏和环境的严重污染。

The company manufactures"silver sea"brand series of ceramic products for daily use,art,gifs and advertisement such as tea-things,table ware,coffee-things,drinking vessel and microwave oven,including magnesia seed ceramics seed sclertin ceramics,white ceramics,opal China and fine stone vessel o many kind,Among them the magnesia seed ceramics and hotel ceramics without lead and cadmium are hygienic products with over 1000 kinds and are sold well in all parts of China and also exported to many countries and areas such as Europe U.S.A,Japan,South Korea and South east Asia,well received by the users.

公司开发生产的"银海"牌产品茶具、餐具、咖啡具、酒具、微波炉用具等各种日用陶瓷、美术陶瓷、礼品陶瓷、广告瓷、高档宾馆酒店用瓷等。有镁质强化瓷，强化骨质瓷，白瓷，精石器，乳白瓷等多个瓷种。镁质强化瓷宾馆瓷，有1000多个花色品种，是无铅，无镉的绿色健康陶瓷，畅销全国各地，并出口欧、美、日、韩及东南亚等国家和地区，深受国内外用户的欢迎。

In this paper the author overviews mass magnesia concrete dam thchnical origin, the present status here and abroad, and available primal problems; descripts theexpansive character of magnesia concrete, fundamental force performances and long-term lasting quality, derivates all the equations of temperature field and temperature stress field, analysises the existing canonic calculating autogenous volume deformation model of the micro-expansive concrete, at last select the expansion model of dynamics for calculating.

本文综述了大体积混凝土氧化镁筑坝技术的由来、国内外研究现状、优势及存在的主要问题；叙述了掺氧化镁微膨胀混凝土的膨胀特点、基本力学性能及长期耐久性能；推导了计算温度场及温度应力场的全部公式。对现有计算氧化镁混凝土自生体积变形的几个典型模型进行了深入的研究和分析，阐述了它们各自的优缺点，最终选定动力学模型作为计算氧化镁混凝土自生体积变形的数学模型。

The application of reused magnesia chrome bricks in magnesia based castable was studied.

研究了废镁铬砖在镁质浇注料中的应用。

At the particle size of magnesia fine in this experiment, the content of magnesia fine in the range of 4% to 12% has little effect on the rheology of the castable.

在实验的镁砂粉粒度下，镁砂粉含量（质量分数4%~12%）对浇注料的流变性影响较小。

The melting point of the pure periclase magnesia is 2,800℃, some impurities may reduce the melting point of the magnesia , borides influence is extremely remarkable.

纯净的方镁石型氧化镁的熔点为2800℃，一些杂质可使氧化镁的熔点降低，其中硼化物的影响极为显著，即使是少量的硼化物(0.01%-0.02%)的存在就将导致氧化镁的抗蠕变性能明显降低，而B2O3在高温时的气化能够造成氧化镁材料的气孔率增大，严重影响其高温强度，故镁砂降硼是非常重要的。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。