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flat back
 flat back
met. 平背模型
polygr. 平背装帧; 平书脊
sport. med. 板样背
| stope
 stope
el. 开采面
eng.geol. 采矿场
hydroel.st. 回采工作面; 梯段形开采面

to phrases
flat back
met. 平背模型 (pattern)
polygr. 平背装帧; 平书脊
sport., med. 板样背
flat-back
gen. 平-背的; 水平分层的
flat back stope
: 16 phrases in 9 subjects
Engineering geology1
General1
Gymnastics1
International trade2
Plastics1
Polygraphy3
Refrigeration1
Technology3
Textile industry3