化学工程专业英语考试重点.docxVIP

  1. 1、本文档共10页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
  5. 5、该文档为VIP文档,如果想要下载,成为VIP会员后,下载免费。
  6. 6、成为VIP后,下载本文档将扣除1次下载权益。下载后,不支持退款、换文档。如有疑问请联系我们
  7. 7、成为VIP后,您将拥有八大权益,权益包括:VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
  8. 8、VIP文档为合作方或网友上传,每下载1次, 网站将根据用户上传文档的质量评分、类型等,对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
化学工程专业英语考试重点

Math Section: Real: rational consists of Integer and fraction, decimal fraction, irrational. Complex Figures: rectangle; parallelogram; rhombus; trapezoid 3D graphics: rectangular prism; cyclinder; cone; sphere Number theory: odd; even; prime number Angles: alternate; corresponding; vertical; obtuse; acute; straight Coordinate: Ordinate Quadrant Abscissa Rectangular coordinate Basic math symbols and reading writings: N! : factorial : greater than ≥: greater than or equal to ≤: less than or equal to 2n: square root of n 3n: cube root of n nn: nth root of n ln (x): natural logarithm of x log (x): logarithm to the base 10 of x loga (x): logarithm to the base a of x |a|:absolute value of a xn: the nth power of x x2: the square of x dny/dxn :the nth derivative of y to x ?ny/?xn: the nth partial derivative of y with respect to x ydx: integral of y with respect to x abydx: integral of y between limits a and b 1,234,567,000: one billion, two hundred and thirty-four million, five hundred and sixty-seven thousand Phys Section: Prefix: Other units: Temperature: Kelvin(K), Celsius(oC), Fahrenheit Current: ampere Volume: 1 cubic meter=1 liter Force: 1 N(Newton)=105 dyne, 1kgf=9.8N(Newton) Pressure:1atm (atmosphere)= 101.325kPa, 1kPa=7.5mmHg, 1kPa=0.01bar Thermal:1J(Joule)=0.2389cal(calorie) Power:1kW(kilowatt)=1.34HP(horse power) Viscosity: cp(centipoise)=mPa·s Charge: 1Ah=3600C 1As=1C(coulomb) TEM(Transmission electron microscopy): TEM samples of silver nanoparticles were prepared by placing a drop of silver hydrosol on carbon coated copper grids and allowing water to completely evaporate. High-resolution TEM images were obtained, and energy dispersive X-ray (EDX) analysis was performed on Tecnai F30 microscope (FEI, The Netherlands). SEM(scanning electron microscope): A type of electron microscope that produces images of a sample by scanning it with a focused beam of electrons. FTIR(Fourier transform infrared spectroscopy): It covers a rang

您可能关注的文档

文档评论(0)

dajuhyy + 关注
实名认证
文档贡献者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档