The future of 3-D printing
One startling ability 3-D printers have is that
they can print parts of themselves. This ability could come in handy for
future space missions, like building a base on Mars Instead of
transporting heavy equipment to Mars, engineers could send one 3_D
printer that could "print" multiple printers. Each one could be used to
make certain objects - from doors to windows - for astronauts to
assemble.
An even more incredible application of 3-D
printing technology is being tested in the medical field. A company
called Organovo has developed a type of 3-D printer that can take a
human's cells and use them to create organic tissues. Organovo
successfully printed their first blood vessels in 2010, and they are
looking ahead to the day when they can print entire replacement organs.
Making an impact
Last year, analysts at the Atlantic Council
released a report titled "Could 3-D printing Change the World? The
authors predict that 3-D printing will be a game changer on many levels.
They believe that 3-D printing could have "as profound an impact on the
manufacturing world as the PC and the Internet on the information
world.
Info Cloud
Hey, Ken, thanks for lending me your cell phone yesterday. It really came in handy.
No problem. That's just an old cell phone I'm not using anymore. I'm glad it came in handy.
Now friends, when I said, "It came in handy", I mean it became useful. Since my cell phone was being repaired, Ken's phone came in handy, or it became useful to me.
Now, if you keep something handy, it's not really the same as come in handy, is it?
No, it's not. If you keep something handy, it's close to you. And therefore, it's easy to reach or get to, presumably with your hands. I like to keep a Chinese-English dictionary handy, so I can look up Chinese characters that I don't know.
Sounds like it's a handy reference book.
It is Ken, my Chinese-English dictionary is very useful.
You know, I always keep a pen handy, so I can jot down important information.
Good. It's always within easy reach. Now, we should mention a related word handyman, and that's someone who can do many different small jobs or tasks, like fix things in a house or building.
A handyman is very handy with various tools.
Yes, he or she is very good at working with tools.
handy adj. 手很巧的
clever or skillful in using your hands, doing small jobs, etc.
- My brother is handy with electronic devices.
我弟對电子器材操作自如
handy adj.手頭的, 手邊的, 離手很近的
near and easy to reach
- keep a pen handy
將筆放在離自己很近, 随手可得
handy adj. 容易操作的,好使用的
useful
- a handy reference book.
一本很好使用的参考書
handyman n.善常於多種手藝的人
a person (especially a man) who is skillful at doing small jobs (such as household repairs)
print themselves 印出自己的零件
come in handy 派上用场
Language Lab
startle v. 使驚嚇; 使嚇一跳; 使驚奇
to make someone suddenly surprised or slightly shocked
- Ray's sudden resignation startled everyone in the company.
Ray突然辭職讓公司每個人都嚇一跳
startling adj. 令人吃驚的
very unusual or surprising
- The girl's startling looks made her a rising star in modeling.
這個女孩驚人的美冒讓她成為模特兒介的新秀
incredible adj. 不能置信的，令人無法相信的，不可思議的, 驚人的
[in字首-否定之意/ credible 可信的]
-hard to believe.
不能相信的, 不可信的
- The boy has an incredible memory.
- The incredible voice of the singer captured the attention of the entire audience.
replacement n.替代, 代替者, 取代; 更換; 接替
when you get something that is newer or better than the one you had before
replace v.替代，替換
to start doing something instead of another person, or start being used instead of another thing
- Our computers are too old and too slow and require replacement.
- The quarterback was seriously wounded, and the team needs a replacement quickly.
profound adj.深深的; 深刻的; 深切的; 深度的
having a strong influence or effect
- George's tragic childhood has had a profound impact on his character.
Georg的悲慘童年, 对他性格影响深遠
profound adj.知識淵博
showing great knowledge and understanding [= deep]
- Professor Frasier's profound knowledge of ancient Egypt amazed us.
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