着火极限 | |
tech. | inflammability limit |
浓度 | |
hydroel.st. | density |
met. | consistence; depth; enrichment |
metrol. | volume concentration |
nucl.phys. | volumetric activity; activity concentration |
sport. | consistency |
tech. | concentration |
| |||
inflammability limit |
着火极限 : 4 phrases in 1 subject |
Technology | 4 |