The solid rocket boosters are made up of proprietary material.

固体火箭助推器由专门的材料组成。

This is proprietary material that shouldn't be casually exposed.

这些私有材料不能被呈上法庭。

While this is not the biggest of projects, the company feels this is just the start and confidence is high that this proprietary material  will find its way onto much bigger builds in time.

虽然这不是最大的项目，但该公司认为这只是一个开始，并且很有信心这种专有材料会及时用于更大的构建。