packless matrix

例句：

1. 1.The engineer designed a packless matrix that could withstand high temperatures.
   工程师设计了一种无包装的矩阵，可以承受高温。
2. 2.The new technology uses a packless matrix to improve data transmission speeds.
   新技术使用无包装的矩阵来提高数据传输速度。
3. 3.The company is developing a packless matrix for use in the automotive industry.
   该公司正在开发一种用于汽车工业的无包装矩阵。