一百五十周年纪念 meaning in English

sequicentennial
sesquicentennial

The wsc 2004 exhibition ( from 28 august to 1 september 2004 ) is the first world stamp championship to be held in singapore , and coincides with the celebration of the 150th anniversary of the first use of stamps in singapore in 1854
展览会将于八月二十八日至九月一日在新加坡首次举行，适逢新加坡庆祝于一八五四年首度发行邮票的一百五十周年纪念。
It includes " 150th anniversary of railways in australia " stamp set of 5 ( top ) issued by australia post , the " care - for - nature - chek jawa stamp series " stamp set of 4 ( middle ) issued by singapore post and " tourism 2004 " stamp set of 6 ( bottom ) issued by new zealand post
包括由澳洲邮政发行的澳洲铁路一百五十周年纪念一套五枚邮票(图上) 、由新加坡邮政发行的爱护自然chekjawa邮票系列一套四枚邮票(图中)及由新西兰邮政发行的旅游热点2004一套六枚邮票(图下) 。