Which factor effected the<br/>volume of the mill? ( ) A: The length of the mill B: The diameter of the mill C: Both A and B D: The capacity of the mill

The crankshaft is used to change the ____________ motion of the piston into __________ motion. A: reciprocating, rotary B: rotary, reciprocating C: vertical, horizontal D: horizontal, vertical

以下（ ）指的是型腔铣加工？ A: mill_contour B: mill_making C: mill_rotary D: mill_palnar

The hydraulic condition of the rotary baffle plate flocculation tank is better than that of the reciprocating type， and head loss of the rotary type is 40% less than that of the reciprocating type。 （ ）

Mill 准则包括

column mill的意思是_____________.

Data relating to the direction and velocity of rotary tidal currents can be found in the ______

The ports are drilled in the liners at an angle of approx 202103 the result being that （） is given a rotary movement.

It is held in the crankcase in the cylinder block and converts the reciprocating motion of the pistons into a rotary motion for the drive wheels．

Hammer mill （磨煤机）is used to _____________ coal before entering into the boiler.