The scientists then added powdered magnetite, an iron oxide present on Mars, to the flasks.
科学家接着又往烧瓶内加入粉末状磁铁矿和火星上现有的一种氧化铁。
Their very titles stand as totems of an earlier era: “Japan’s Ports—Past and Present”; “Iron and Steel: A Success Story”; “American Girl Finds Japan.”
其中的经典标题充分反映了这一早期时代的特征：《日本的进出口——过去和现在》、《钢铁：一个人的成名史》、《美国女孩眼中的日本》。
Haem iron only exists in animal tissues, whilst in plant foods iron is present as non-haem iron.
血红素铁只存在于动物组织，而在植物性食品铁本作为非血红素铁。
Experts point out that, at present, outside the Chinese iron ore spot market prices have been higher than the suppliers and manufacturers of the latest contract price by 10%.
专家指出，目前，中国以外的市场上铁矿石的现货价格已经高出供应商和生产商最新合同价格的10%。
At present, the sacrificial anode materials used for the protection of iron and steel, which are based of aluminum, zinc and magnesium alloy.
目前常用的保护钢铁设备的牺牲阳极材料有铝基合金、锌基合金和镁基合金三大类。
Iron and aluminum hydroxides are present in soils in both crystalline and amorphous forms.
土壤中出现有结晶和非结晶形式的铁和铝的氢氧化物。
At present, there are proven reserves Slate, kaolin, dolomite, iron ore and so on.
目前已探明的矿藏有板石、高岭土、白云石、铁矿石等。
The technology equipment level and present product structure of Xuanhua Iron and Steel Company are introduced and analyzed, some adjusting measures offered.
对宣钢工艺装备水平及产品结构现状进行了介绍和分析，并提出调整对策。
The iron ore resource and its present cost of Hebei Province are discussed as well as the reserves and its availability, the relative counter-measures and some Suggestions offered.
分析了河北省铁矿资源条件及铁矿成本现状，探讨了资源储量的可供性及保证成度并提出了相关对策和建议。
At the upper temperatures, only austenite is present, the 0.77% carbon being dissolved in solid solution with the iron.
在较高温度时，只存在奥氏体，0.77%的碳溶解在铁里形成固溶体。
Ferredoxin: an iron-containing protein present in green plants and certain anaerobic bacteria that functions in electron transport reactions in biochemical processes such as photosynthesis.
铁氧化还原蛋白：绿色植物和某些抗生菌提供的一种含铁蛋白，在生化过程的电子传送反应中起作用，如光合作用。
A new measure method of cadmium bismuth copper lead and iron in refined antimony by atomic absorption spectrophotometer was present.
提出了原子吸收分光光度法快速测定精锑中微量镉铋铜铅铁的新方法。
Present situation is described of comprehensive utilization of Panzhihua Mine's resources of vanadium, titanium and iron.
介绍了攀枝花钒钛铁资源的利用现状。
We hardly find the heavy iron pots and pans being used in a present-day kitchen.
我们在当代厨房中很难看到有谁使用笨重的铁锅。
In the present study, the microstructure and properties of iron aluminide intermetallic coatings in situ synthesized by cored wire and high velocity arc spraying (HVAS) were investigated.
采用粉芯丝材和高速电弧喷涂技术(HVAS)原位合成了铁铝金属间化合物涂层，并研究了涂层的显微组织和性能。
Iron brake disc used widely at present with low thermal conductivity, easy hot cracking and low wear resistance needs to be improved.
目前广泛使用的铸铁刹车盘导热率低、易热裂、耐磨性差，需要加以改进。
At present, large BF iron notch splash is prevented by slurry pressing technology at iron notch and tuyere area in Angang.
目前，鞍钢通过采用铁口及风口区域压浆技术，已基本解决了大型高炉铁口喷溅的问题。
The present application of super iron concentrate is introduced. Its quality standard, production technique and typical process are summarized, the research direction in the future analyzed simply.
介绍了超级铁精矿的应用现状，概述了超级铁精矿的质量标准、制取技术及其典型的生产工艺，并简要分析了今后的研究方向。
The second part introduced the current situation of the logistics of iron ore import in our country, and has analyzed the present transportation environment.
第二部分介绍了我国进口铁矿石物流的现状，并对当前的运输环境进行了分析。
The present condition iron ore resources, expanding of production capacity and prediction of potential resources are comprehensively introduced.
文章对我国铁矿资源现状、生产能力增长、潜在资源预测等作了全面介绍。
Isoamyl propionate was synthesized by using solid iron system super strong acid as catalyzer instead of inorganic acid in present research.
采用固体铁系超强酸代替无机酸作催化剂催化合成了丙酸异戊酯。
I don't know if you can accept the price. At present, the price of iron is rising every day.
我不知道你能不能接受这个价格，目前铁的价格每天都在涨。
There are two categories of on-spot rapid graphite morphology te st methods for nodular iron production at present: direct method and indirect method.
球铁石墨形态炉前快速识别技术目前有直接快速检测和间接快速检测两大类。
The night star got a fright and wanted to accept a boxing already too late, feels at present shadow of human figure in a flash, own iron boxing has been already ended up in nothing.
夜星吓了一跳，想收拳已经来不及了，只觉眼前人影一晃，自己的铁拳已经落空了。
The present status of the production in Nanfen concentrator, Ben Steel and its research and practice of Silicon reduction and iron increase technology are described.
介绍了本钢南芬选矿厂的生产现状及其降硅提铁工艺研究和实践。
Present situation of developing a new generation iron and steel material at home and abroad is explained.
阐述了国内外新一代钢铁材料开发的现状，指出了新一代钢铁材料的发展趋势。
The present conditions of the iron ore supply of Bao Steel Co. and the problems existing in its mining administration are analyzed.
分析了包钢公司铁矿石供给现状及矿业管理中存在的问题。
The present conditions of the iron ore supply of Bao Steel Co. and the problems existing in its mining administration are analyzed.
分析了包钢公司铁矿石供给现状及矿业管理中存在的问题。
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