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bedding course | |
construct. | 垫 层 |
el. | 底层的 |
hydroel.st. | 垫底层 |
met. | 垫层 |
material | |
anim.husb. | 物质; 原料; 材料 |
auto. | 材 料 |
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垫底层 | |||
底层的 | |||
垫底层 | |||
垫层 | |||
垫层 (材料); 铺底 (层) |
bedding course: 6 phrases in 3 subjects |
Bridge construction | 1 |
Hydroelectric power stations | 2 |
Technology | 3 |