| 单词 | roofing slate |
| 释义 | roofing slate [`rüf·iŋ ´slāt] MATERIALS Hard varieties of slate varying in size from 12 × 6 inches (30 × 15 centimeters) to 24 × 14 inches (60 × 35 centimeters), and from 1/8 to 3/4 inch (3 to 19 millimeters) in thickness. |
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