- underlining felt
- 衬: line; place sth. underneath
- 毡: felt
- 屋面衬毡: sarking felt underlining felt
- 衬毡: lining felt
- 层面: bed plane; bedded plane; bedding planes; bedding surface; beddingplane; deck; floor; plane of bedding; statification plane; stratificatio lane; stratification plane
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