1) QT-structure
雀替结构
2) QT construction
雀替构造
3) bracket
[英]['brækɪt] [美]['brækɪt]
雀替
4) alternative structure
交替结构
1.
A theoritical study of the alternative structure of copolymer ligands of catalyst for carbonylation of methanol to acetic acid has been carried out in terms of the ASED-MO method and Monte Carlo method.
本文采用以ASED-MO(含原子对排斥的EHMO法)为基础的结构自动优化的EHTOPT法及Monte-Carlo法,对甲醇羰基化制乙酸催化剂的共聚物配体交替结构进行了理论研究。
5) substituted struc-ture
替换结构
6) sparrow brace in the shape of a horse
骑马雀替
1.
The sparrow brace in the shape of a horse, usually built between two gate posts and under the eave, is a special feature of ancient architectures.
骑马雀替多在门头两柱之间、额枋之下,是古建筑特色构件之一,在清代演变为纯装饰构件,形式内容丰富。
补充资料：自然选择──达尔文地雀大树雀（Camarhynchus psittacula）
[图]
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条