| 释义 |
sight window
基本例句
观察窗,观察孔
There is an observation window on the hatches available for watching during operation.检修口上设有观察窗，在搅拌过程中方便观察。
The outer door is a polyurethane foamy one with a glazing unit observation window, for better perspectivity and heat preservation.外门为聚氨脂发泡门，中空玻璃观察窗，透视性好，保温性能好。 |