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And iron content in milk in very small and some food as a result of the iron has oxalate, carbonate salts and plants and so on, can interfere with iron absorption and utilization, resulting in iron deficiency anemia.

而铁元素在奶类中含量很少并且有些食物中的铁由于有草酸盐,碳酸盐和植物酸盐等,会干扰铁的吸收利用,因而造成缺铁性贫血。

The oxide bound iron, copper to available iron, copper and carbonate bound manganese, zinc to available manganese, zinc has positive effect, but residual iron, copper to available iron, copper and oxide bound manganese to available manganese have negative effect.

铁锰氧化物结合态铁、铜对有效态铁、铜及碳酸盐结合态锰、锌对有效锰、锌具有一定正效应。

At first, the difference of the iron chloride and iron nitrate precursor was studied. By the photoelectrochemical results, the film prepared by iron chloride precursor showed better photoelectrochemical response than the film prepared by iron nitrate precursor, and the reasons were discussed.

研究中首先比较使用氯化铁前驱液与硝酸铁前驱液所制备出的氧化铁薄膜的差异,由实验结果知道,使用氯化铁前驱液的薄膜,其光电化学表现比使用硝酸铁前驱液的薄膜来得好,而研究中也探讨了其可能的原因。

The whole level of steel and iron profession development enhancement is the key aspect that affects the steel and iron trade enterprises, concrete manifestation for steel and iron production enterprise's marketing policy, to own marketing channel, agent's request; the terminal user of steel and iron product to settle accounts, the product quality, the physical distribution as well as the correlation service for own goods supply enterprise's finance and so on set a higher request.

钢铁行业的整体发展水平的提高是影响钢铁贸易企业的关键因素,具体表现为钢铁生产企业的营销政策、对自身营销渠道、代理的要求;使用钢铁产品终端用户对自身供货企业的财务结算、产品质量、物流以及相关服务等提出了更高的要求。

In the end the paper takes a empirical study on our country's iron and steel industry and reaches a conclusion as follows: the optimal concentration point of our country's iron and steel industry is to keep 35 to 70 iron and steel companies in the whole industry and the optimal scale of iron and steel company is to keep 1.73 to 2.60 million tons.

本文最后还结合我国钢铁产业实际,测定2000年我国钢铁产业的最优集中区间为产业中保持有35-70家钢铁企业,钢铁企业的最优规模区间为173-260万吨。

Results showed that amino acid cheleted iron was molecular coordination compounds in liquids and had low molar conductivity, Among them, methionine chelated iron and glycine chelated iron was stable in pH 2.0~6.0 solution, the histidine cheleted iron was stable in pH 2.0~8.0 solution .

为探索更有效的脱酸方法,实验研究了在固相体系中气流A脱酸的可行性,结果发现,气流A既能起到很好的脱酸效果,又能缓慢地引发螯合反应,维持反应体系温度的稳定,其脱酸率达到94.60%。

Beijing University to my company for technical support, mainly with the production of various municipal facilities gray iron, ductile iron covers, gray iron, ductile iron water pipe fittings.

我公司以北京高校为技术依托,主要生产与市政设施配套的各种灰铁、球墨铸铁井盖,灰铁、球墨铸铁给水管道配件。

Q: cast sb aside Q: A:抛弃,废除 A: Q: cast off Q: A:解缆放船;抛弃 A: The old man cast off his prodigal son and disinherited him.

老人断绝了与他的不肖儿子的关系,并剥夺了他的继承权。

Using in the excavator bucket teeth, crusher hammer, ball mill liner, high strength low alloy cast steel has 2-4 times longer servicing life than that of high manganese cast steel, and its production cost is equal to that of high manganese cast steel.

目前已在挖掘机斗齿、破碎机锤头、球磨机衬板等领域成功推广使用,其使用寿命比高锰钢提高2-4倍,生产成本与高锰钢相当。

In recent years, with the advanced requirements for speedup and heavy load from rail transport, the advanced requirements for the property of supporting pedestal have been proposed. The inherent defectivenesses which include the low mechanical property, low fatigue ductility and low shock resistance of cast-steel product, and the avoidless gas cavity, shrinkage porosity, inclusion, crack, etc in cast-steel product, existed in the product of Cast-steel supporting pedestal, have threatened the high speed and safe running of railroad.

近年来,随着铁路运输对重载、高速要求的提高,对关键部件支撑座的性能要求也在提高,铸钢支撑座产品存在的固有缺陷(铸钢件本身的机械性能、疲劳韧性、抗冲击性能都不高,铸件产品无法避免地存在气孔、缩松、夹杂、裂纹等)对铁路高速安全运行已构成威胁。

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