131st Canton Fair will be on line from 15 April to 24 … 131st Canton Fair will be on line from 15 April to 24 查看全文 »
What kind of data should you collect while working on the vending machine project? … What kind of data should you collect while working on the vending machine project? 查看全文 »
Why is sparkling water so loved by young people? … Why is sparkling water so loved by young people? 查看全文 »
Hommy’s brand new coke machine coke automatic vending machine … Hommy’s brand new coke machine coke automatic vending machine 查看全文 »
We saw a vending machine which served ice cream by using coins inside the park … We saw a vending machine which served ice cream by using coins inside the park 查看全文 »
Please describe the purpose behind the pre-cooling feature of the ice cream makers? … Please describe the purpose behind the pre-cooling feature of the ice cream makers? 查看全文 »