grating shearing interferometer

例句：

1. 1.The engineer designed a grid of steel beams to support the structure.
   工程师设计了一排排的钢梁来支撑结构。
2. 2.The old house had a lattice roof that was made of wood.
   这所老房子有一个由木头制成的木制格子屋顶。
3. 3.The carpenter used a grid to measure the dimensions of the wooden planks.
   木匠用网格测量木板的尺寸。