expansion
/ɪkˈspænʃən/ 名词 B2中文： 扩张、扩大、展开
- An act, process, or instance of expanding. · The expansion of metals and plastics in response to heat is well understood.
- The fractional change in unit length per unit length per unit temperature change. · Look up the expansion of 1018 steel at stick welding temps and figure out how far this thing's gonna bend once we weld it up.
- A new addition. · My new office is in the expansion behind the main building.
- A product to be used with a previous product. · This expansion requires the original game board.
- That which is expanded; expanse; extended surface.
- The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston.
- The replacement of a short name (e.g., acronym, initialism, alphanumeric symbol, abbreviation) with the longer name that is synonymous with it, as when spelling out acronyms to ensure clarity for a general audience. · Expansion of acronyms is often helpful for nonexpert readers (anacronyms excluded).
- The string of text thus substituted.
复数 expansions
来自图书馆
Matthew did not know that Samuel, in the recent expansion of his business, had set up a lady clerk also; she was a niece of his wife’s and a very dashing young person indeed, with a huge, drooping pompadour, big, rolling brown eyes, and a most extensive and bewildering smile.
For decades, the red fox has been a familiar resident of the British countryside, but its expansion into urban landscapes is a relatively recent phenomenon.
Facing a severe domestic labor shortage during a period of rapid economic expansion, the Australian government actively recruited workers from overseas.
The over-engineered capacity of his original design was so remarkably prescient that it accommodated the city's massive demographic expansion for well over a century.
在真实文章中学习expansion
注册免费账号后，在图书馆中把鼠标悬停在任何单词上即可看到意思，还能听朗读、收藏单词并按你的记忆安排复习，看到每本书你已经认识多少。