A method for measuring 3-d magnetic field of the permanent magnet with three single-dimension Hall probes was proposed.

提出了一种采用3个一维霍尔探头进行三维测量小型永磁体空间磁场的方法。

youdao

D 'aquino Monaco hung 27 different wallpapers above the existing dado in the stair hall of a 19th-century town house in New York.

达基诺·莫纳科在纽约一套十九世纪的室内住宅的楼梯间的护墙板上饰面了27种不同纹样的壁纸。

youdao

This concert hall was owned by an organization called the Daughters of the American Revolution, or D.A.R.

VOA: special.2009.01.25

The D.A.R. would not permit Anderson to perform in the concert hall because she was black.

VOA: special.2009.01.25

Sagrario had been a bible teacher who'd never even been to a dance hall. 14 32 GUILLERMINA SYNC: We didn't feel it was fair the way we were treated ... and we didn't want to keep quiet about it.

BBC

Clinton talked about a hairdresser she'd met earlier in the day at a town hall meeting in Kenosha.

NPR: Democrats Warm Up Wisconsin for Next Contest

Just to the south, Rep. Mike Ross, D-Arkansas, held a town hall meeting.

CNN: Tough questions, frustrations continue in town halls