inner slotted rectangular waveguide grating 内开槽矩形波导栅
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The inner door to our cell was made of metal grating, and Jim and I would climb it so we could look out the high window above it.
我们的牢房的内门是用金属栅栏制成的,Jim和我爬到门上,这样我们就能从门上高高的窗户看到外面。
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