gōng dù
意思解释：（Fair degree）对于两条线段a和b，如果存在线段d，使得a=md，b=nd(m，n为自然数)，那么称线段d为线段a和b的一个公度；并称线段a和b为可公度线段或可通约线段。如果对于线段a和b，这样的线段d不存在，那么称线段a和b为无公度线段或不可通约线段。
字师宪，号知稼翁，光化军莆田(今属福建)人。绍兴八年(1138)进士第一，签书平海军节度判官，除秘书省正字。坐贻书台官言时政，罢为主管台州崇道观。过分水岭题诗，有“谁知不作多时别，依旧相逢沧海中”之句。时赵鼎方谪潮阳，说者谓…
Word division constitution, date knows sow old man, cropland of actinic army Pu (belong to Fujian today) person. Carry on promotes 8 years (1138) a successful candidate in the highest imperial examinations the first, calm naval red-letter day spends autograph book sentence an official, save correct a wrongly written character or misspelt word except the secretary. Sit when word of official of stand of leave behind book politics, stop to esteem view to be in charge of stage city. Beyond the mark Shui Ling inscribes a poem, have who knows not to make a long time fasten, meet as before in the sea sentence. the person that say calls...
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