The Frequency Shift Keying modulation is widely used in HF digital communication.

How can I perform color keying with DirectX graphics?

在DX中怎么做颜色索引?

This piano wants keying up.

这架钢琴需要调音.

The company keyed its factories to produce more goods.

该公司使它的各工厂能够生产更多货物.

The musicians keyed their instruments just before the concert began.

乐师们在音乐会快开始前为乐器调了音.

He was a little keyed up because of her.

他为了她有些兴奋起来.

The factories are keyed to produce the things that their army needs.

要使这些工厂适于生产军需品.

To Croft's keyed senses, the sound echoed up and down the river.

在克洛夫特高度敏感的听觉听来, 那声音简直震动了小河上下.

It was he who keyed the door yesterday.

正是他昨天用钥匙锁门的.

They keyed a piano up to concert pitch.

他们把钢琴的音调升高到音乐会的高音标准.

The crowd was keyed up for the football match.

群众为这场足球赛而欢欣.

I have keyed this sentence three times, and it's still wrong!

我把这个句子输入了三次, 可是仍然不对.

The coach keyed up the team for the big game.

教练鼓励队员以备大赛.

The farm was keyed to the needs of the local people.

农场按当地人的需要作了调整.

The concert was a failure because the instruments were wrongly keyed.

那场音乐会失败了,因为乐器定错调了.

She keyed her mood to that of the other guests.

她控制情绪使之与其他客人一致.

I wasn't able to sleep that night, I was so keyed up.

那一夜我无法入睡，我太激动了。

The train is timed to connect with the ferry.

火车时刻编排得可与渡轮运行时刻衔接.

He timed his journey so that he arrived before dark.

他调整了一下旅程时刻,因此,在天黑前就到了.

His remark was well / badly timed, ie made at a suitable / an unsuitable moment.

他说的话正合[不合]时宜.

The striking up of the band is timed to the moment.

乐队准时开始奏乐.