You may use 1-3 percussion instruments ( in Voices 2-4 )

It is the most obviously unique characteristic of Chinese multiple-voice folksongs.

它所独具的色彩,已成为中国多声部民歌的最鲜明的特征.

This cavity regarded as the source of sounds and speech.

发声部:被认为能发声和讲话源的腔.

He sings treble.

他唱最高声部。

The area affected is very minute.

感染部位非常小.

I have a pain in the region of my heart.

我的心脏部位痛.

She carried some machine parts from this city to that one.

她将一些机器零件从这个城市运送到那个城市.

The worn-out guide ring of the piston skirt should be renewed.

活塞裙上磨损了的倒换应该换新.

The direction of the current is reversed.

电流方向倒换.

As we age, cell turnover slows and dead skin cells pile up all over our face.

正如我们的年龄一样, 细胞更替速度和死皮细胞堆积在我们的脸上.

As we know, lots of kinds of birds will migrate when the seasons changed.

正如我们所知, 许多鸟都会在季节更替的时候迁徙.

Every hair has the cycle of replace of life and death.

每根头发都有生死更替的周期.

The most serious threat to Exxon is replacing reserves.

对埃克森最大的威胁来自石油储备地的更替.

Bright warm days follow clear cool nights.

明媚温暖的白天和清澈而凉爽的夜晚交相更替.

For the moment, she could scarcely forgive the substitution.

这会儿, 她没法子宽恕这种更替.

There has been very little renewal of personnel in higher education.

从事高等教育的人员新老更替极其缓慢。

John and Bill changed off at riding the bicycle.

约翰和比尔轮换着骑这辆自行车.

A novel parameter calibration method, named branch-in-turn calibration, is presented.

提出了一种新的参数标定法, 称作分支轮换标定法.

Is provision made for periodic rotation of procurement personnel?

是否有定期轮换采购中间人的机制存在?

Check the tire manufacturer's recommendations-different tires have different rotation patterns.

查询轮胎生产厂家说明介绍,不同类型的轮胎有不同的轮换方式.

Change the left wheel of Mr. Green's car.

把格林先生车子的左轮换掉.