上低音部

According to the following drawing , it can be made a distribution. Why the breath application of Hulusi and Bawu is so especial. The explanation of voice reed can help to understand. Now, let's look at the key part of Hulusi and Bawu ,which be magnified and is a reed model . The libration come into being by the middle part that like the bird tongue, which librate and sound wave come into being. Its character is that the part ——from head to end broaden step by step, the head is narrow and the end is wider than the head. So, we can catch on that the end libration decide the bass pronunciation for the end is wider and it need more strong air while it librate, the libration of acuate part decide the high pronuciation for the acuate part is acuate and it needn't more strong air while it librate.

我们可以根据下图来进行气息力度的分配：强弱为什么葫芦丝、巴乌的气息运用会如此特殊，我从发音簧片的勾着上来讲可能会更容易理解，请同学们看一看这是放大后的葫芦丝、巴乌的心脏部件——簧片模型：它的振动是靠中间像鸟的舌头这一片上下振动而产生音波，它的特点是：头部到根部由尖逐渐变宽，头部较尖，根部较宽，我们这样理解：根部的振动是决定低音的发音，因为根部较宽故在振动时气流需要加强一些；尖部的振动是决定高音的发音，因为头部较尖细，故在振动是无需太强的气流。

New Orleans jazz band, and drummer Return to the use of military band bass drum and marry, adopt a "double-click" performing skills, which is the big bass drum and saw each other on the counter position, a person at the same time with Alexander in the head and hit stems played.

美国新奥尔良的爵士乐队和拉格泰姆乐队的鼓手们使用军乐队中的低音大鼓和小鼓，采用一种&双击&的演奏技巧，即把低音大鼓和小鼓放在可以相互反击的位置上，由一人同时用鼓槌的头部和柄部击奏。

As a world event with political undertones, the Olympics have had their share of controversy.

如和政治上的低音一个世界事件，奥林匹克已经有他们的论争的部份。

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。