丁砖层 | |
archit. | bond course |
met. | course bond; course of header |
与 | |
hydroel.st. | with |
顺 砖层 | |
hydroel.st. | stretching course |
交叉 | |
forestr. | chiasma |
"或" | |
comp. | alternation |
隔层 | |
geol. | barrier |
砌合 | |
construct. | bond |
丁砖层 : 15 phrases in 3 subjects |
Architecture | 2 |
Metallurgy | 2 |
Technology | 11 |