翻訳と辞書 ・ 2,5-Dimethoxy-4-bromoamphetamine ・ 2,5-Dimethoxy-4-butylamphetamine ・ 2,5-Dimethoxy-4-chloroamphetamine ・ 2,5-Dimethoxy-4-ethoxyamphetamine ・ 2,5-Dimethoxy-4-ethylamphetamine ・ 2,5-Dimethoxy-4-fluoroamphetamine ・ 2,5-Dimethoxy-4-iodoamphetamine ・ 2,5-Dimethoxy-4-isopropylamphetamine ・ 2,5-Dimethoxy-4-methylamphetamine ・ 2,5-Dimethoxy-4-nitroamphetamine ・ 2,5-Dimethoxy-4-propylamphetamine ・ 2,5-Dimethoxy-4-trifluoromethylamphetamine ・ 2'-phosphotransferase ・ 2(x)ist ・ 2+1 ・ 2+1 road ・ 2+2 ・ 2+2 (2012 film) ・ 2+2 (car body style) ・ 2+2 (TV channel) ・ 2+2 Photocycloaddition ・ 2+2 road ・ 2,000 Feet Away ・ 2,000 Guineas Trial Stakes ・ 2,000,000 Voices ・ 2,000-yard club ・ 2,2'-Azobis(2-amidinopropane) dihydrochloride ・ 2,2'-Bipyridine ・ 2,2'-Bis(2-indenyl) biphenyl ・ 2,2'-Dipyridyldisulfide
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2+1 road
thumb 2+1 road is a specific category of three-lane road, consisting of two lanes in one direction and one lane in the other, alternating every few kilometres, and separated usually with a steel cable barrier. Traditional roads of at least width can be converted to 2+1 roads and reach near-motorway safety levels at a much lower cost than an actual conversion to motorway or dual carriageway. Denmark and Sweden have been building 2+1 roads since the 1990s. ==By country==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「2+1 road」の詳細全文を読む
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