“adding machine”可以造什么句，adding machine造句

2、Before the adding machine, offices employed dozens of workers who spent all day adding columns of Numbers and double-checking the math of others.

4、The structure, working principle, performances and application of a new type automatic ball-adding machine for ball mill are described, which is designed under the leadership of the author.

1、oil adding machine with attached oil meter

5、hot flue padding machine

3、With a set of buttons and a loud bell, the device, sold by National Cash Register (NCR), was little more than a simple adding machine.