单词	abac scale
释义	ABAC scale ABAC scale A nomogram for obtaining the conversion angle to apply when plotting great circle bearings on a mercator projection. ABAC scale ABAC scale A nomogram for determining the conversion angle to apply when plotting great-circle bearings on a Mercator projection. ABAC scales are printed on the margins of Mercator plotting charts. Scales A and C are interrelated, as are B and D. In the illustration, the ABAC scale measures the conversion angle for two places that have a 16° change of longitude between them and a mean latitude of 50°. The conversion angle in this case is 6°.
随便看	call a doctor! call again call agent callaghan callaghan center for the study of conflict callaghan, daniel callaghan james callaghan, leonard james callaghan, (leonard) james, baron callaghan of cardiff callaghan, morley callaghan, morley edward callaghan of cardiff, leonard james callaghan, baron callaghan valley local organizing committee call (a group) together call a halt call a halt to call a halt to (something) callahan callahan associates holdings belgium callahan county callahan county, texas callahan county, tx callahan, daniel callahan, harry callahan, harry morey

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。