card

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(PERMISSION) a small, rectangular piece of card or plastic, often with your signature, photograph, or other information proving who you are, that allows you to do something, such as make a payment, get money from a bank, or enter a particular place
(GAME) one of a set of 52 small rectangular pieces of stiff paper each with a number and one of four signs printed on it, used in games
(GREETINGS) a rectangular piece of stiff paper, folded in half, with a picture on the front and often a message printed inside, sent on a special occasion
(INFORMATION) a small, rectangular piece of stiff paper with information printed on it, especially a person's job title, business address, and phone number
(STIFF PAPER) (a piece of) thick stiff paper
(COMPUTER) a thin plate inside a computer that contains very small electronic circuits and controls certain operations of the computer
(PERSON) a funny or strange person
to ask someone to show you a document, especially an identity card, in order to prove how old they are

A card is a piece of stiff paper or thin cardboard on which something is written or printed.
A card is a piece of cardboard or plastic, or a small document, which shows information about you and which you carry with you, for example to prove your identity.
A card is a rectangular piece of plastic, issued by a bank, company, or shop, which you can use to buy things or obtain money.
A card is a folded piece of stiff paper with a picture and sometimes a message printed on it, which you send to someone on a special occasion.
A card is the same as a .
A card is a piece of thin cardboard carried by someone such as a businessperson in order to give it to other people. A card shows the name, address, telephone number, and other details of the person who carries it.
Cards are thin pieces of cardboard with numbers or pictures printed on them which are used to play various games.
If you are playing cards, you are playing a game using cards.
Card is strong, stiff paper or thin cardboard.
&rarrsee also bank card , business card , calling card , credit card , debit card , gold card , greetings card , identity card , playing card , smart card , wild card
If you say that something is in the cards, you mean that it is very likely to happen.
If you have your cards read, you have your fortune told by someone who uses playing cards or tarot cards to tell you about yourself and predict your future.
to comb out and clean fibres of wool or cotton before spinning

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And the latter mainly introduces how to drive the RFID communication and encapsulate the operation of the card into functions which can be transferred by the customers conveniently.
軟件部分重點闡述如何實現(xiàn)射頻識別通信的底層敺動,竝在此基礎(chǔ)上將卡片的操作用函數(shù)形式封裝,以供用戶調(diào)用。
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