median line

基本解释

China and Japan have disputes over the east area of the "median line" where Japan is not entitled to taking any unilateral action.
“中间线”以东海域属争议海域，日方在这一海域无权采取单方面行动。
www.fmprc.gov.cn
It is ungrounded for Japan to grant the test-drilling rights to Japanese private company in the disputed sea area with the excuse of its so-called unilateral "median line".
日方利用所谓“中间线”这一单方面主张，在中日争议海域对日民间企业授予试开采权，是站不住脚的。
www.fmprc.gov.cn
China has never recognized the so-called "median line" claimed by Japan unilaterally. The Japanese side has no right to undertake unilateral actions in the disputed sea area.
中方从未承认日方单方面主张的“中间线”，日方无权在争议海域采取单方面行动。
www.fmprc.gov.cn

The orange line shows the 1979 to 2000 median extent for that day.
FORBES: U.S. Navy Scrambles for Piece of Arctic Pie
If the poverty line is drawn at 40% of median household income rather than 60%—the government's definition—there has been no improvement since 1997.
ECONOMIST: Income inequality