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

• 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
• Two lagging chromosomes were often found at Anaphase I and a dyad with equal chromosome number of 20+ 20 were formed at Anaphase I.
  减数分裂末期，往往出现两个落后染色体，最终产生染色体数为20+20的二分体。
• After observing regulatory sites obtained by experimental analysis, many transcriptional regulatory sites in yeast consist of a pair of highly conserved oligonucleotides, spaced by a non-conserved region of fixed width ( dyad).
  观察实验获得的转录调控位点，发现许多调控位点不是相邻接的寡核苷酸，而是由一对保守寡核苷酸构成，这对寡核苷酸被一段长度固定的非保守区域间隔开。
• 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；
• 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；
• At tetrad stage, dyad, triad, tetrad with micronucleus and polyad appeared.
  四分体时期出现二分体、三分体、含微核的异常四分体及多分体。
• 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
• 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。
• Automatic generation of the transformed dyad mechanism in analyzing any planar multi-link complex mechanism
  平面多杆复杂机构分析中转化双杆组机构的自动生成
• 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。