speech synthesis system的用法和样例：
例句
- Raman scattering technique is used to study the carbon nanotube synthesis system.
利用拉曼散射技术从多角度研究了碳纳米管合成系统。 - The tests show that the method described in the paper is much suitable to the constitution of Speech Synthesis System and improves the naturalness of the synthesis result a lot.
测试表明了本文提出的基于统计模型的韵律层级分析和韵律建模思路，能够较好应用于汉语语音合成系统的构造，并使之具有良好的合成语音的自然度。
