百度试题 结果1 题目Steel is the mixture___iron and oxygen. 相关知识点: 试题来源: 解析 答案:of.考查单词填空.根据句意及句子结构,要填入of,意为"[表示部分与整体的关系]的". 钢是铁和氧的混合物. 反馈 收藏
百度试题 结果1 题目Steel is a mixture of iron and other ___ (物质) such as carbon, nickel(镍) and so on.相关知识点: 试题来源: 解析 substances 反馈 收藏
Carbon- This ingredient is essential to steel’s creation; all steel will have some amount of carbon. It is the most important hardening element, but as it is added it can reduce the toughness of the material. Carbon reduces the amount that the knife will wear over time. So, the amount ...
Chromium– Chromium increases the hardenability of steel, it can join together with carbon to form very stable carbides which are excellent for wear and abrasion resistance. It is used in high levels in stainless steels for corrosion resistance, it does this by creating a protective oxide film on...
(syngas). If coal is used, thenCOis the reducing gas, and if natural gas is used, then the reducing gas issyngas. To achieve a CO or syngas environment, the heating of coal or a mixture of oxygen (O2) and natural gas (CH4) is typically used, resulting in direct CO2emissions. ...
1.Steel is a mixture of iron and other ___(物质)such as carbon, nickel(镍)and so on. 2.Rachel soon came to the ___(结论)that John was only interested in himself. 3.When it was performed in America, there was an ___(观众)of 100,000 people. 4.I can't ___(集中注意力于)...
material, matter,substance5. Steel is a mixture of iron and other6. That is a of principle.7. Tell us the of your activity.8. This suit is made of very good 相关知识点: 试题来源: 解析 5. substances 6. matter 7. substance 8. material ...
Red mud is the waste of bauxite refinement into alumina, the feedstock for aluminium production1. With about 180 million tonnes produced per year1, red mud has amassed to one of the largest environmentally hazardous waste products, with the staggeri
CONSTITUTION:A ladle discharged from a steel manufacturing furnace is mixed with flux constituted of a mixture of CaO, SiO2 or the like reducing the m.p. of oxide inclusions, and this mixture is brought into contact and mixed with molten steel to reduce the m.p. of oxide inclusions in ...
1.1.1 Advantages and limits of high-strength constructional steel 1.1.1.1 Cost-efficiency The price of high-strength constructional steel per ton is generally higher than that of normal strength constructional steel. However, according to the survey results from Chinese constructional steel market, the...