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|---|---|---|---|---|---|
| 1 | sound insulating wall | 防音壁 | |||
| 2 | sound-insulating wall | 防音壁 | |||
| 3 | sound-proof wall | 防音壁 | |||
| 4 | improved sound-insulating wall | 改良型防音壁 | |||
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|---|---|---|---|---|---|
| 1 | sound insulating wall | 防音壁 | |||
| 2 | sound-insulating wall | 防音壁 | |||
| 3 | sound-proof wall | 防音壁 | |||
| 4 | improved sound-insulating wall | 改良型防音壁 | |||