| English | Russian |
| an infinite straight-line bounded from one side is called a half-line a ray in one direction | ограниченный |
| cut machining time in half | сокращать время обработки вполовину |
| divide in half | делить пополам |
| in half | наполовину |
| in half | пополам (we divide this segment in half) |
| reduce in half | уменьшить вполовину |
| we divide this interval in half | наполовину (на половину) |