在科学课上，我们用立体镜观察蝴蝶标本，它们呈现出逼真的三维效果。

In science class, we used a ___stereoscope to examine butterfly specimens that appeared vividly three-dimensional.

这款3D相机采用了最新的立体成像技术。

This 3D camera uses the latest ___stereoscope technology.