Translated into chinese
https://bitcointalk.org/index.php?topic=549386

Quote from: fusioncoin on March 28, 2014, 04:38:27 PM

A multi-signature address is an address that is associated with more than one private key. Multisig have lots of uses, wallet sharing, increased security and escrow. Further readings: Multisig, The Future of Bitcoin.

Part 1. Create Multisig Address

To create a m-of-n multisig address, we need n public keys. You can easily get public key with respect to your address.
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Right click any address to get public key
http://i.imgur.com/4fCZ3Qr.jpg
Now we can create our multisig address
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Click "New MultiSig" and fill in each public keys from step 1.
http://i.imgur.com/C2lhJn6.jpg
You can find the newly created multisig address on "Addresses" and export this multisig address.
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Export MultiSig address to your partner
http://i.imgur.com/3kKLlQA.jpg

Part 2. Send to multisig address
Send to multisig address is identical to your normal transaction, just provide your multisig address as recipient.

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http://i.imgur.com/BXyGvVb.jpg

Part 3. Spend from multisig address
Here we'll describe how Alice and Bob spend FusionCoin from their 2-of-2 multisig address. This transaction needs to be signed with two private keys, one is hold by Alice, the other by Bob.

Alice reviews her balance of her multisig addresses.
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Check balance
http://i.imgur.com/MBFrJoJ.jpg
Alice starts creating transaction from the 2-of-2 multisig address.They each has a private key of that address in their wallet.
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Create Transaction
http://i.imgur.com/K5GSMqP.jpg
Alice sign the transaction with her private key, and export the raw transaction. Alice then needs to send this raw transaction to Bob(Email, BitMessage, SMS...).
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Sign and export raw Transaction
http://i.imgur.com/bk9u8HZ.jpg
Bob import this raw transaction, he can see the transaction is already signed by a private key. Bob reviews the transactions and sign with his private key.
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Import and Sign raw Transaction
http://i.imgur.com/iRDimrv.jpg
Now the transaction is signed by two private keys. Bob can simply click "Send" to broadcast the transaction.
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Send transaction
http://i.imgur.com/fb0AKDI.jpg