两端不束窄的长方形量水堰的英文

suppressed rectangular weir

• 两端:    ends; both ends; e ...
• 不:    a block of wood
• 束:    bind; tie
• 窄:    narrow
• 的:    4次方是 The fourth po ...
• 长方形:    oblong; rectangle; ...
• 量水堰:    weir; measuring we ...