1·The experimental research of the formwork, keel and structure are carried out separately.
分别对模网、 龙骨及结构体进行实验研究。
1·Preferably the former is pivoted between open and closed positions and has a slightly V-shaped base which when abutted against a mould or formwork, urges the recess former into the closed position.
优选地,成形器在打开位置和闭合位置之间枢转并且具有略微V形的基部,当V形的基部紧靠模具或模壳时促使凹部成形器处于闭合位置。