低音的铜管乐器

T he band is composed of brass instruments (trumpet, trombone, French horn, and tuba), wood-wind and percussion instruments (drum, timpani, and glockenspiel).

我们的乐队是由铜管乐器﹝如：小号、长号、法国号和低音号…等﹞、木管乐器﹝如：长笛、萨克管与竖笛…等﹞与打击乐器﹝如：大鼓、定音鼓与铁琴…等﹞所组成的。

A French horn .T he band is composed of brass instruments (trumpet, trombone, French horn , and tuba), wood-wind and percussion instruments (drum, timpani, and glockenspiel).

我们的乐队是由铜管乐器﹝如：小号、长号、法国号和低音号…等﹞、木管乐器﹝如：长笛、萨克管与竖笛…等﹞与打击乐器﹝如：大鼓、定音鼓与铁琴…等﹞所组成的。

A large, valved, brass wind instrument with a bass pitch.

大型带活塞的低音铜管乐器。

A brass similar to the tuba but having a somewhat higher pitch and a mellower sound .

上低音大号，次中音号一种类似于大号的铜管乐器，但具有较高的音度和柔美的声音

A brass wind instrument similar to the tuba but having a somewhat higher pitch and a mellower .

上低音大号，次中音号一种类似于大号的铜管乐器，但具有较高的音和柔美的

A bass singer or voice.A brass wind instrument similar to the tuba but having a somewhat higher pitch and a mellower sound .

上低音大号，次中音号一种类似于大号的铜管乐器，但具有较高的音度和柔美的声音

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。