橢圓油刷 的英文怎麼說
中文拼音 [tuǒyuányóushuā]
橢圓油刷
英文
oval paint brush-
Special security features have been incorporated into the new definitive stamps. they include the use of a new type of stamp paper with multiple security fibres and an elliptical perforation in the middle of each vertical of the stamp. for high value stamps, iridescent ink is printed in the middle to give a shiny effect when viewing the stamp at different angles
新通用郵票在多方面加強了郵票的防偽特徵,包括印刷郵票選用紙張混有多種纖維,而郵票左右兩邊的垂直中間位置則有橢圓齒孔;高面額郵票的中間部分更以幻彩變色油墨印刷,即使從不同角度觀看,郵票都充滿光澤。
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