| Subject | English | Russian |
| astronaut. | hydrogen leak sensor system | система обнаружения утечки жидкого водорода |
| gen. | hydrogen sensor | водородный датчик (A hydrogen sensor is a gas detector that detects the presence of hydrogen. They contain micro-fabricated point-contact hydrogen sensors and are used to locate leaks. WAD Alexander Demidov) |
| Makarov. | peroxidase-based amperometric sensor of hydrogen peroxide generated in oxidase reaction | амперометрический сенсор для определения пероксида водорода, генерируемого в реакции оксидазы |