<delect id="xlixc"><fieldset id="xlixc"><object id="xlixc"></object></fieldset></delect>

單項(xiàng)選擇題

For a purifier, changing to a gravity disc with larger hole diameter will move the interface towards the （）.

A.bowl periphery
B.bowl center
C.upper surface
D.lower surface

你可能感興趣的試題

單項(xiàng)選擇題

For many years marine centrifuges were designed for （） operation, that is the machines were run for a period during which solids accumulated in the bowlThe machine was stopped when the accumulated solids began to impair its performance.

A.purifying
B.batch
C.long period
D.temporary

單項(xiàng)選擇題

When a clarifier is running the impurities and water collect at the bowl （）.

A.center
B.periphery
C.inlet
D.upper parts

<form id="9dey8"><tfoot id="9dey8"><menu id="9dey8"></menu></tfoot></form>