 | Great Britain. Board of Trade - 1926 - 200 頁
...all round the horizon at a distance of at least 2 miles; and shall by day carry in a vertical line one over the other not less than 6 feet apart, where they can best be seen, two black balls or .shapes each 2 feet in diameter. 152 (5) A vessel employed in laying or in picking... | |
 | Charles Hurst Cugle - 1926 - 396 頁
...at least two miles. By day she shall carry in a vertical line, one over the other, not less than six feet apart, where they can best be seen, three shapes not less than two feet in diameter, of which the highest and lowest shall be globular in shape and red in color,... | |
 | United States - 1927 - 556 頁
...at least two miles. By day she shall carry in a vertical line, one over the other, not less than six feet apart, where they can best be seen, three shapes not less than two feet in diameter, of which the highest and lowest shall be globular in shape and red in color,... | |
 | U.S. Coast and Geodetic Survey - 1927 - 412 頁
...at least two miles. By day she shall carry in a vertical line, one over the other, not less than six feet apart, where they can best be seen, three shapes not less than two feet in diameter, of which the highest and lowest shall be globular in shape and red in color,... | |
 | U.S. Coast and Geodetic Survey - 1928 - 1006 頁
...and Geodetic Survey, under way and employed in hydrographic surveying, may carry in a vertical line, one over the other not less than 6 feet apart where they can best be seen, three shapes not les than 2 feet in diameter of which the highest and lowest shall be globular in sbape and green in... | |
 | 1930 - 342 頁
...vessel the distance between the lights of such private code may be reduced to 3 feet if necessary. less than 2 feet in diameter, of which the highest and lowest shall be globular in shape and green in color, and the middle one diamond in shape and white. Lighthouse tenders when working on buoys... | |
 | 1936 - 374 頁
...and Geodetic Survey, under way and employed in hydrographic surveying, may carry in a vertical line, one over the other not less than 6 feet apart where...highest and lowest shall be globular in shape and green in color and the middle one diamond in shape and white. (a) Vessels of the Coast and Geodetic... | |
 | Great Britain - 1904 - 1026 頁
...all round the horizon, at a distance of at least 2 miles. By day she shall carry in a vertical line one over the other, not less than 6 feet apart, where...best be seen, three shapes not less than 2 feet in dinmeter, of which the highest and lowest shall be globular in shape and red in colour, and the middle... | |
 | 1922 - 232 頁
...code may be reduced to 3 feet if necessary. By day such surveying vessel may carry in a vertical line, not less than 6 feet apart, where they can best be seen, three shapes of not less than 2 feet in diameter, of which the highest and lowest shall be globular in shape and... | |
 | 1979 - 968 頁
...and Geodetic Survey, under way and employed in hydrographic surveying, may carry in a vertical line, one over the other not less than 6 feet apart where...highest and lowest shall be globular in shape and green in color and the middle one diamond in shape and white. (a) Vessels of the Coast and Geodetic... | |
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By day she shall carry in a vertical line one over the other, not less than 6 feet apart, where they can best be seen, three shapes not less than 2 feet in diameter... 
