Western Europeans had also developed and put into use the magnetic compass, which helped when clouds obliterated both the Sun and the stars.

西欧人也已经发明并且使用了磁罗盘，当云彩同时遮住了太阳和星星时，它就能起作用。

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The nation now has 142 airports, with another 100 airports expected to be built and put into use by 2020.

目前全国机场数量达142个，到2020年末，又将会有100个新建机场建成并投入使用。

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This method has been programmed with FORTRAN algorithmic language and put into use on FELIX C-256 electronic computer.

本方法已经用FORTRAN算法语言编制成计算程序，在FELIX C - 256电子计算机上进行运算。

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As more and more paper money was put into use, the value of the money fell.

VOA: special.2009.01.01

Community compulsory purchase which would help communities to put vacant land and buildings back into use.

BBC: Potatoes

Ms. McCLANAHAN: Well, the safest thing, especially for short-term money, is to put into CDs - and I would just use short-term CDs right now interest rates being so low - you could use money market funds, money market mutual funds.

NPR: How to Weather a Rocky Economy

Each year employers and consumers put money into individual accounts that workers can use for medical expenses.

FORBES: Fact and Comment