 |
| English | Russian |
| frequency of occurrence | частота встречаемости (The number of times a given event occurs at specified sample points during a defined period.  biologyonline.com Oleksandr Spirin) |
|
| English | Russian |
| frequency of occurrence | частота встречаемости (The number of times a given event occurs at specified sample points during a defined period. biologyonline.com Oleksandr Spirin) |