pioneering stage

• 初创阶段

pioneering stage的用法和样例：

例句

1. Tourism was then still in its infant stage.
   旅游业当时还处在初创阶段。
2. During the initial stage, our core product will be Digital NIR Breast Imager.
   在初创阶段，我们的核心产品为数字激光乳腺检测仪。