| proving ground | (n) สถานที่ทดลอง, See also: ห้องทดลอง, Syn. laboratory |
| proving ground | (n) a workplace for testing new equipment or ideas |
| 実験場 | [じっけんじょう, jikkenjou] (n) proving ground; test site [Add to Longdo] |
| Prüfgelände { n } | proving ground [Add to Longdo] |