The invention relates to a keelless anti-expansion solid floor board.
本发明涉及一种无龙骨抗伸缩式实木地板。
The perspective is a bit odd, and I probably should have drawn in a solid floor line.
透视看起来有点怪﹐而且我大概应该把地板和墙之间的分线划清楚。
Double concentric cylindrical shell with solid floor and added longitudinals on the pressure tank shell is a very good structural form of new pressure tank.
指出了液舱壳板加纵骨的全实肋板同心双层圆柱壳是一种优良的耐压液舱新型结构型式。
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