英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

paraffin    音标拼音: [p'ɛrəfən]
n. 石蜡

石蜡

paraffin
n 1: from crude petroleum; used for candles and for preservative
or waterproof coatings [synonym: {paraffin}, {paraffin wax}]
2: a series of non-aromatic saturated hydrocarbons with the
general formula CnH(2n2) [synonym: {methane series}, {alkane
series}, {alkane}, {paraffin series}, {paraffin}]
3: (British usage) kerosine [synonym: {paraffin}, {paraffin oil}]

Paraffin \Par"af*fin\ (p[a^]r"[a^]f*f[i^]n), Paraffine
\Par"af*fine\ (p[a^]r"[a^]f*f[i^]n or p[a^]r"[a^]f*f[=e]n), n.
[F. paraffine, fr. L. parum too little affinis akin. So
named in allusion to its chemical inactivity.] (Chem.)
A white waxy substance, resembling spermaceti, tasteless and
odorless, and obtained from coal tar, wood tar, petroleum,
etc., by distillation. It is used in candles, as a sealing
agent (such as in canning of preserves), as a waterproofing
agent, as an illuminant and as a lubricant. It is very inert,
not being acted upon by most of the strong chemical reagents.
It was formerly regarded as a definite compound, but is now
known to be a complex mixture of several higher hydrocarbons
of the methane or marsh-gas series; hence, by extension, any
substance, whether solid, liquid, or gaseous, of the same
chemical series; thus gasoline, coal gas and kerosene consist
largely of paraffins.
[1913 Webster PJC]

Note: In the present chemical usage this word is spelled
paraffin, but in commerce it is commonly spelled
paraffine.
[1913 Webster]

{Native paraffin}. See {Ozocerite}.

{Paraffin series}. See {Methane series}, under {Methane}.
[1913 Webster]


请选择你想看的字典辞典:
单词字典翻译
paraffin查看 paraffin 在百度字典中的解释百度英翻中〔查看〕
paraffin查看 paraffin 在Google字典中的解释Google英翻中〔查看〕
paraffin查看 paraffin 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Calculatrice en ligne
    Free Online Scientific Notation Calculator Solve advanced problems in Physics, Mathematics and Engineering Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, Calculation History
  • Online Calculator
    The original calculator was invented in the 17th century by a Frenchman called Blaise Pascal! He was just 18 years old, and wanted to help his father do his tax calculations
  • Calculator. net: Free Online Calculators - Math, Fitness, Finance, Science
    Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with in-depth information
  • Calculatrice en ligne
    Calculette ou calculatrice en ligne gratuite pour des calculs simples avec des opérations d'addition, de multiplication, de division et de soustraction
  • Basic Online Calculator - ma-calculatrice. fr
    Free basic online calculator for simple calculations with addition, multiplication, division, and subtraction operations
  • Online Calculator
    Free Online Scientific Notation Calculator Solve advanced problems in Physics, Mathematics and Engineering Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, Calculation History
  • SolveCalc - Free Calc Solver Scientific Calculator Online
    SolveCalc is a free calc solver and scientific calculator for students and teachers Solve algebra, trigonometry, fractions, percentages and logarithms instantly with no download needed Multiple calculator themes and math tools included
  • Web 2. 0 scientific calculator
    Free Online Scientific Notation Calculator Solve advanced problems in Physics, Mathematics and Engineering Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex Numbers, Calculation History





中文字典-英文字典  2005-2009