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methylene    音标拼音: [m'ɛθɪl,in]
n. 亚甲基

亚甲基

methylene
n 1: the bivalent radical CH2 derived from methane [synonym:
{methylene group}, {methylene radical}, {methylene}]

Methylene \Meth"yl*ene\, n. [F. m['e]thyl[`e]ne, from Gr. ? wine
? wood; -- a word coined to correspond to the name wood
spirit.] (Chem.)
A divalent hydrocarbon radical, {-CH2-}, not known in the
free state, but regarded as an essential residue and
component of certain derivatives of methane; as, methylene
bromide, {CH2Br2}; -- formerly called also {methene}.
[1913 Webster]

{Methylene blue} (Chem.), an artificial dyestuff consisting
of a complex sulphur derivative of diphenyl amine; --
called also {pure blue}.
[1913 Webster]


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  • AIFD
    A non-profit organization dedicated to promoting the art of floral design as a professional career
  • Membership - AIFD
    Membership in AIFD ® Interested in becoming a Certified Floral Designer (CFD®) with the ultimate goal of becoming an Accredited Member of the American Institute of Floral Designers®? We hope the following information will help you prepare for this wonderful career pursuit Becoming an Accredited Member of AIFD® Membership in AIFD® is selective and an individual must fulfill rigid
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    Becoming AIFD® Becoming an Accredited Member of AIFD® There is only one way to become an Accredited Member of AIFD ®: Participate in the Professional Floral Design Evaluation (PFDE ®) and achieve scores at the level required to receive an invitation to AIFD ® Please click on one of the sub-categories listed below for additional information
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    The AIFD® Symposium also included hands-on workshops, informative business sessions, a welcome reception, two celebratory dinners, a student competition, and specialized FFA and SAIFD educational sessions In addition, the annual Awards Ceremony took place on July 3, which included the induction of the newest members of the Institute
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    However, AIFD® recommends that participants take the online portion of these classes in addition to actual hands-on floral workshops One great source for hands-on workshops are AIFD’s Education Partners The cost to enroll in each online course is $79 for AIFD® members and AIFD® Friends and $99 for others
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    Below you will find listed all AIFD approved Education Partners, as well as approved State Floral Association education providers Each student is responsible for contacting these institutions to obtain details such as course costs, timeframes, length, difficulty level, etc
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    The American Institute of Floral Designers (AIFD ®) is comprised of six Regional Chapters that form the Institute’s backbone These chapters conduct local education programs for designers and consumers alike
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    Education AIFD ® is dedicated to establishing, maintaining and recognizing the highest standard of professional floral design and education in floral design Welcome to the newest benefit that will help you strengthen your professional skills or put you on the path to becoming an accredited member of AIFD ® – AIFD’s online education
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    Becoming a Certified Floral Designer (CFD ®) There are three ways to become an internationally recognized Certified Floral Designer: Attend and successfully complete the appropriate floral design education programs at an AIFD® Education Partner, approved State Floral Association or SAIFD Chapter and then pass the PFDE ® online test Read More Participate in the same Professional Floral





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