材料科學(xué)與工程專業(yè)英語(yǔ)1-18單元課后翻譯答案-全文預(yù)覽
【正文】 ary when the existing part bees diseased, damaged, or just simply wears out.8. Because of its low density, cancellous bone has a lower E and higher straintofailure ratio than cortical bone.9. Eliminating stress shielding, by reducing E, is one of the primary motivations for the development of bioceramic posites.10. There are questions concerning the longterm effect of radiation emission from zirconia ceramics.Unit 131. 聚合物的俗名叫塑料，這個(gè)詞指的是一大類具有許多性質(zhì)和用途的天然材料和合成材料。5. crystalline ceramics grain boundary Alkaline earth oxide oxide additive Triple point saturation magnetization Television tube the color scale6. To understand the behavior and properties of any material, it is essential to understand its structure.7. The grain size is determined by the size of the initial powder particles and the way in which they were consolidated.8. Transparent or translucent ceramics require that we limit the scattering of light by pores and secondphase particles.9. Alumina ceramics are used as electrical insulators because of theie high electrical resistivity and low dielectric constant.Unit 121. 材料的選擇是任何組分設(shè)計(jì)至關(guān)重要的環(huán)節(jié)，尤其在植入體和其它醫(yī)療器械方面是特別重要的。5. the glass transition temperature ioniccovalent bond Stress distribution coefficient of thermal expansion Glass optical fibre materials science and engineering Solidoxide fuel cells electron microscopy6. Diamond, which is classified as a ceramic, has the highest thermal conductivity of any known material.7. Ceramic are stronger in pression than in tension, whereas metals have parable tensile and pressive strength.8. Ceramics generally have low toughness, although bining them in posites can dramatically improve this property.9. The functions of ceramic products are dependent on their chemical position and microstructure, which determines their properties.Unit 111. 材料科學(xué)與工程領(lǐng)域經(jīng)常是根據(jù)四大方面—合成與加工，結(jié)構(gòu)與組成，性質(zhì)與性能之間的相互聯(lián)系來(lái)定義的。4．Protective film circuit Free electron electron transfer Metal cation anode reaction5. Some metals, such as gold and silver, can be found in the earth in their natural, metallic state, and they have little tendency to corrode.6. Oxidation is the process of stripping electrons from an atom and reduction occurs when an electron is added to an atom.7. If the surface bees wet, corrosion may take place through ionic exchange in the surface water layer between the anode and cathode.8. Corrosion is monly classification based on the appearance of the corroded material.Unit 101. 我們要觀察（研究）這些性能，看它們與我們所期望的陶瓷的組成有多匹配。4. 單晶高溫合金是運(yùn)用改進(jìn)的定向凝固技術(shù)而形成單晶的，因此在材料中并無(wú)晶界。4. 合金特別是為滿足更高應(yīng)用要求的合金比如噴氣發(fā)動(dòng)機(jī)，可能含有十種以上的元素。4. 此外，發(fā)達(dá)地區(qū)的人均能量使用量是不發(fā)達(dá)地區(qū)人均能量使用量的九倍以上。6． Test specimen static loading force normal axis Engineering strain critical stress yield strength stress area Stress strain curve7. Temperatures below room temperature generally cause an increase in strength properties of metallic alloys。2. 因此，一般多測(cè)幾次以得到力學(xué)性能，報(bào)導(dǎo)的數(shù)值一般是平均值或者計(jì)算的統(tǒng)計(jì)最小值。4． 某些鐵磁性材料，特別是一些粉末狀或夾層鐵，鋼或鎳合金的相對(duì)導(dǎo)磁率可高達(dá)1000000。5． Micr
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