: In one minute, the advanced coal mining transport machine can transport 21 tons of coal.

Student 2: In one minute, the fastest electronic computer can perform 9 billion calculations.

Student 3: In one minute, a nuclear-powered submarine can sail 1,200 meters underwater.

Student 4: In one minute, a high-speed rotary printing press can print more than 1,300 newspapers per minute, and an advanced coal mining transport machine can transport 21 tons of coal.

In one minute, the fastest electronic computer can perform 9 billion calculations.

In one minute, a nuclear-powered submarine can sail 1,200 meters underwater.

In one minute, a large solar water pump can pump 38 tons of water.

In one minute, the cannon can fire 80 rounds.

In one minute, a folding machine can fold 80 pages of books

In one minute, a binding machine can bind 35 pages.

In one minute, a picking machine can pick 69 kilograms of tomatoes...

In one minute, a large noodle machine can knead 200 kilograms of dough, and a small noodle machine can knead 200 kilograms of dough. 100 pounds of noodles.

In one minute, a high-speed rotary printing press can print more than 1,300 newspapers.