The lab manager ordered a replacement grating after the old one was scratched during shipping.

舊的光柵在運送途中被刮傷後，實驗室經理訂購了一片替換的光柵。

Our sales team demonstrated how the grating separates light into colors for the visiting clients.

我們的業務團隊向來訪客戶示範光柵如何將光分解成各種顏色。

Please confirm the delivery date for the twenty diffraction gratings listed on this invoice.

請確認這張發票上列出的二十片繞射光柵的交貨日期。