Assertion: mechanical spillway | /r/HasProperty | wider than 4.5 m
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Source sentences:
text: Note: if you determine that W should be greater than 1.50 m , it is often simpler to make two or even three spillway sections, each less than 1.50 m. If the mechanical spillway is wider than 4.5 m, you should not design it without the advice of an engineer.