三棱形 meaning in English

triangular prism

Concretes . moulds for cylindrical and prismatic test specimens
混凝土.圆柱形和三棱形注模
6 . through analysis and discuss of the precipitation mechanism of cr phase , it can be deduced that primary ( cr ) phase exhibits petal shape or triangular due to solute and heat flow in local fluid
6通过对初生相( cr )相析出机制的初步分析和探讨，认为由于熔体局部的溶质和热流波动，初生相的生长形态有花瓣状或三棱形。