dyad

英 [ˈdaɪæd]

美 [ˈdaɪæd]

n.  二分体; 二联体; 并矢; 并向矢量

复数：dyads　

化学

BNC.46050 / COCA.18814

英英释义

noun

• two items of the same kind
  Synonym:couplepairtwosometwainbracespanyokecoupletdistichduoduetduad

双语例句

• Firstly, the linkage is decomposed into two parts: a dyad and a four-bar linkage.
  首先将该机构拆分为一个双杆组和一个四杆机构；
• Callose exists mainly in transverse walls during dyad, triad and tetrad stages, a little in side walls.
  二分体、三分体、四分体时期，胼胝质荧光主要存在于大孢子之间的横壁上，侧壁内胼胝质荧光较弱。
• The dyad distribution and number-average sequence length of these copolymers were quantitatively determined.
  定量地求得丁-戊共聚物二元组分布及数均序列长度数据。
• Application of dyad green's function equivalent source method in borehole electromagnetic method
  并矢格林函数等效源法在钻孔电磁波法中的应用
• A dedifferentiation of mitochondria and plastids in structure in microspore mother cells was observed at from diplonema/ diakinesis to metaphase ⅰ, then a redifferentiation at dyad stage.
  在小孢子母细胞减数分裂过程中，有核糖体数量存在逐渐减少的现象，质体和线粒体结构在双线期/终变期和中期趋于简化；
• Dyad analysis for elastic solid strain
  弹性体应变的并矢分析
• A model for describing the dyad relationships between the initiator and adopters is built. Some stimulation mechanism and strategy to promote the growth of the network are proposed.
  在此基础上，应用数学模型描述两者之间的关系，给出了电子商务网络成长的激励机制与策略。
• The position error, velocity error and acceleration error of planar dyad linkage mechanisms with multi-links and multi-loops are analyzed according to the constitutional principles of planar mechanisms.
  根据平面机构组成原理，对平面多杆多环Ⅱ级组连杆机构的位置误差、速度误差和加速度误差进行了分析。
• A Stephenson six-bar chain is composed of a basis four-bar chain and a dyad, and its circuit properties are determined by the circuit properties of the basis four-bar chain and the configurations of dyad and the intersection between them.
  将Stephenson六杆链看作一个基础四杆链和双杆组组成，则其回路特性由基础四杆链的回路特性与双杆组的构形以及他们的相互作用决定。
• Analysis of the Dyad Relationships in the Growth of Electronic Commerce Network
  企业际电子商务网络中的二元关系分析