pH controller
| recorder
| pH controller abbr. | |
| mech.eng. | pH控制器 |
| recorder abbr. | |
| gen. од. | 录音机; 记录器 |
| athlet. | 成绩记录员 |
| exhib. | 文档员 |
| food.ind. | 记录者 |
| hydroel.st. од. | 记录仪 |
| met. | 印码电报机 |
| space | 记录器 |
| sport. | 记录员; 记分员 |
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| pH控制器 | |||
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pH controller : 6 phrases in 4 subjects |
| Automated equipment | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Technology | 2 |