- double-acting power units
- • изпълнителен механизъм с двойно действие
English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Double acting ship — MT Tempera, the first double acting tanker, breaking ice astern Double acting ship (DAS) is a type of icebreaking merchant ship designed to run ahead in open water and astern (in layman s terms, backwards) in ice. Such ships can operate… … Wikipedia
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