matched beam

例句：

1. 1.The engineer designed a matched beam to align the two pieces of glass.
   工程师设计了一根匹配的光束来对齐两块玻璃。
2. 2.The team used a matched beam to illuminate the dark room.
   团队使用一束匹配的光束来照亮黑暗的房间。
3. 3. The scientist observed the matched beam and noted its precise alignment.
   科学家观察了那束匹配的光束，并注意到了它的精确对准。