No Chinese claims China is an angel. Chinese simply say that NATO are not angels as they claimed. Yes the motion is not about invading Syria, but what if Assad refuses to step down? Then NATO fire powers will move in to "ensure" the motion. Russian and China didn't veto last motion on Libya, which was not about an invasion either, look what has happened. NATO powers sided in the civil war and one brutal regime replaced another brutal regime, the only difference is that this one is pro-western so you don't see much from the media. Just yesterday a former UN official was tortured to death after only one day in prison. And you tell me why China should not veto the BS? Everyone curses Assad for the killing of his own people but the question is whether foreign intervention can make it better, or worse. So far I didn't see any example of true peace brought by foreign powers. Not in Iraq, not in Afghanistan not in Libya and certainly won't in Syria.
If it is indeed people's war, Assad cannot hold the power regardless of how powerful his army is. This has been witnessed hundreds of times when 3rd world countries got independent from mighty imperial powers. Let them fight their own cause.
As to the veto, US vetoed 44 times on motions condemning Israel, alone. Where were justices at those times? The world is moving towards hypocrisy more and more and I don't get why people still cannot see through this after so many recent events.
China doesn't have direct interest in Syria but it simply doesn't like the idea of western powers poking into other's internal affair with self-interest in mind but with an angel's voice. As to a person living in US, I'd rather have my tax money spent inside US instead of bombing and killing around.