对邮票自身所具有的可探讨性所进行的研究，包括版式、齿孔、纸质、背胶、刷色等方面的理论性和实质性的深入探讨、研究。
... 邮票 postage stamp, postage, stamp 邮票研究 philately 预期收入票据 revenue anticipation note (RAN, financing) ...
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集邮是对邮票进行收集和研究。
此外，最近研究表明，平时一些喜欢拿笔或者邮票的行为会导致未来更大的犯罪。
Furthermore, a recent study has shown that taking small things, such as a pen or a pack of Post-it Notes, could possibly lead to bigger crimes in the future.
我在信上附上邮票给大学的研究生院所以你就可以将你的信寄出。我会立刻让你知道如果我奖学金。
I am enclosing a stamped envelope addressed to the graduate school of the university so that you can just drop your letter in mail.
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