短语词组短语buckstay spacer 刚性拉撑垫块front wall buckstay 前脸墙立柱Buckstay Design Engineer 刚性梁设计工程师tape horizontal buckstay 绕带式水平刚性梁honeycomb beam buckstay 蜂窝状腹板刚性梁 返回 buckstay