| |||
service medium; service substance | |||
active medium | |||
operating fluid; process fluid; working fluid | |||
actuating medium; working substance | |||
working medium | |||
| |||
working material |
工作 介 质 : 6 phrases in 4 subjects |
Aviation | 1 |
Compressors | 1 |
Metallurgy | 3 |
Technology | 1 |