1、These songs are characterized by their lengthy vocalization and free rhythm.
“長調”在音樂上的主要特征是歌腔舒展，節(jié)奏自由。

2、Methods: The hot plate test in mice and tail stimulation vocalization test in rats were used.
方法： 用熱板法和電刺激嘶叫法分別測定小鼠和大鼠的痛閾。

3、Birds communicate by songs, and avian vocalization is a main aspect of ornithology.
鳥類鳴聲是鳥類交流的“語言”，也是鳥類學研究的主要內容之一。

vocalization翻譯