I agree, for the first two sentences the meaning is "to delay/defer"... like Eliot's example of storing meat on ice to use it later. The report, or the invention, will stay almost "as fresh" when they come back to it later. Sentence #3 is the confusing one: it means literally on ice, ie. an ice-skating rink. So a career on ice is ice hockey, or maybe performing as an ice-skater. With this meaning, "Cinderella On Ice" means that the story of Cinderella will be performed by ice-skaters... not that Cinderella has been placed on ice to preserve the body. :P

Think of putting meat on ice. You can store it for a while. Putting something on ice means putting it in storage. i.e. put it away for a while and come back to it later. #3 is a bit strange. Typo maybe? A new career on ice means going into ice hockey.

第一句和第二句里的on ice 都意为搁置，第三句中的on ice 意为冰上的一个体育项目 ^_^

Here is a different usage of on ice. I will use a a bad sentence as an example: After she kills him she will put him on ice. Meaning she will store him in the refrigerator. lol