177. What does the abbreviation VHF stand for？ ______.
举一反三
- What does the abbreviation NMR stand for? ______
- What does the abbreviation "VHF' stand for? A: Vessel's Hoisting Flag B: Very High Safety C: Very Hot Frequency. D: Very High Frequency
- Questions: 1) What does PSC stand for? 2) What does FSC stand for? 3) What does CS stand for?
- What does the abbreviation MSL stand for on a nautical chart A: Mean sea light. B: Mean sea level. C: Moment sea level. D: Moment sea light.
- What does ECDIS stand for?（）