DIMENSIONS OF RATIONAL DECISION-MAKING DURING THE DEMOGRAPHIC TRANSITION; ARANJUEZ (SPAIN) REVISITED


ANALYSIS OF VIBRATION CHARACTERISTICS OF SHEARER CUTTING UNIT

The shearer is under complex impact when it works.and it makes the shearer cutting unit vibrate,which increase the burden of the spiral drum and rocker arm shell.Besides,it would bring bad effects to the shear performance of the shearer.In order to study its study the working stability,the vibration mathematical equations in vertical direction and

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