这个硬盘采用高密度存储技术，能容纳更多数据。

This hard drive uses ___high-density storage technology to hold more data.

这张高密度光盘可以存储超过50小时的视频。

This ___high-density disc can store over 50 hours of video.

这种高密度塑料比普通塑料更耐用。

This ___high-density plastic is more durable than regular plastic.