alder

听听怎么读
英 [ˈɔ:ldə(r)]
美 [ˈɔldɚ]
是什么意思
  • 阿尔德
  • 桤木,赤杨
  • 中古英语
  • Kurt Alder 库尔特•阿尔德:
    (1902~1958),德国化学家,1950年因发现与发展了双烯合成法获诺贝尔化学奖。

变形

复数:alders

英英释义

alder[ 'ɔ:ldə ]

  • n.
    • wood of any of various alder trees; resistant to underwater rot; used for bridges etc
    • north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant

      同义词:alder tree

学习怎么用

双语例句

用作名词(n.)
  1. Alder trees belong to the birch family.
    赤杨属于桦木科。

权威例句

Diels-Alder reactions in room-temperature ionic liquids
Catalytic asymmetric Diels Alder reactions
Hydrophobic acceleration of Diels-Alder reactions
Diels-alder in aqueous molecular hosts: unusual regioselectivity and efficient catalysis.
A model for asymmetric induction in the Diels-Alder reaction
Asymmetric Diels-Alder cycloaddition reactions with chiral .alpha.,.beta.-unsaturated N-acyloxazolidinones
Catalytic Asymmetric Hetero‐Diels–Alder Reactions of Carbonyl Compounds and Imines
Generalized frontier orbitals of alkenes and dienes. Regioselectivity in Diels-Alder reactions
Computational design of an enzyme catalyst for a stereoselective bimolecular Diels-Alder reaction
ChemInform Abstract: New Strategies for Organic Catalysis: The First Highly Enantioselective Organocatalytic Diels—Alder React...
a开头的单词
词汇所属分类
字母词汇表更多
a开头的单词
d开头的单词
h开头的单词
分类词汇表更多
服装行业
柯林斯星级词汇
GRE词汇书
人名姓氏表更多
男/女
雅思预测