Please describe the principle of drum pulper. A: There are axial partitions in drum to bring pulp up, and then let them drop B: There is a stir in drum C: produce strong shear and rub of fibers D: produce mild shear and rub of fiber
Please describe the principle of drum pulper. A: There are axial partitions in drum to bring pulp up, and then let them drop B: There is a stir in drum C: produce strong shear and rub of fibers D: produce mild shear and rub of fiber
Drum brake is comprised of two brake shoes, a wheel cylinder, an adjuster, an emergency brake mechanism, a back plate, a lot of return springs, and a brake drum as shown in Fig.5-7．
Drum brake is comprised of two brake shoes, a wheel cylinder, an adjuster, an emergency brake mechanism, a back plate, a lot of return springs, and a brake drum as shown in Fig.5-7．
The steel drum was invented in Trinidad and Tobago in the 1 , and today it’s popular all over the world. It’s hard to believe, but this drum, with its sweet sound, is made from an 2 . On Trinidad and Tobago, you can hear steel drum music on the 3 , in the marketplaces, and especially during the islands’ 4 .
The steel drum was invented in Trinidad and Tobago in the 1 , and today it’s popular all over the world. It’s hard to believe, but this drum, with its sweet sound, is made from an 2 . On Trinidad and Tobago, you can hear steel drum music on the 3 , in the marketplaces, and especially during the islands’ 4 .
When in face of danger, female gorillas will drum on their chests.
When in face of danger, female gorillas will drum on their chests.
The other drum brake components are located in the brake drum．
The other drum brake components are located in the brake drum．
The manufacturing method of the Drum Carriage and the Guide Carriage were the same.
The manufacturing method of the Drum Carriage and the Guide Carriage were the same.
Ansai Waist Drum can be divided into “marching”, “site” and “stage” forms.
Ansai Waist Drum can be divided into “marching”, “site” and “stage” forms.
The lower header is between the drum and the lowering pipe (). A: Right B: Wrong
The lower header is between the drum and the lowering pipe (). A: Right B: Wrong
The first and second beats of waist-twining step are same. Beat the drum with the right hand and then the left hand.
The first and second beats of waist-twining step are same. Beat the drum with the right hand and then the left hand.
The black boy that used to learn how to play drum from Mr. Holland later became a (n) _______.
The black boy that used to learn how to play drum from Mr. Holland later became a (n) _______.