n.雙棱錐

A trigonal bipyramid has three equatorial and two axial positions. 一個三角雙錐體有三個赤道位和兩個軸向位。

Diamond crystats are intermediate between dihydrate and monohydrate calcium oxalate,two crystal forms:pyramide and bipyramid,therefore,it is not dihydrate calcium oxalate. 本研究發(fā)現(xiàn)菱形晶屬于一水和二水草酸鈣的中問晶體,菱形晶有兩種晶體形式,單錐和雙錐的結(jié)晶形式,菱形晶不是二水草酸鈣。

Keywords acid trailer bipyramid balance seal cover; 裝酸槽車;雙錐平衡密封蓋;

Keywords trigonal bipyramid;cluster;DFT method; 原子簇;密度泛函理論;三角雙錐結(jié)構(gòu);

Keywords trigonal bipyramid;cluster;DFT; 三角雙錐;原子簇;密度泛函理論;

adj.雙棱錐