All you need is an extra tabletop and a sliding board.

你只需要一块额外的桌面和一个滑梯。

Man-made surf and water sliding board are both opened at a fixed time.

人造海浪和水滑梯都是定时开放的，但一点都不影响大家玩耍的情绪。

And the primary scheme is determined for designing space between evacuation ostiums and flow capacity of evacuation sliding board.

确定了某隧道疏散口间距和逃生滑梯通行能力的初步设计方案。