例句與造句

1. The proprietary material consists of three layers of ballistic felt that encapsulates shrapnel and absorbs its energy by stretching up to 900 percent
   他們的專利材料包括三層可以擋子彈的毛氈，能將彈片裹住，并伸張到900 % ，以吸收能量。
2. It's difficult to find proprietary materials in a sentence. 用proprietary materials造句挺難的