If no value is given, then it gets a default value of 0.

如果没有赋值，它会使用默认值0。

youdao

Each name has two values, a default value and a user specified value.

各名称均有两个值，一个默认值和一个用户指定值。

youdao

In the case that an attribute's value remains empty, a default value is set.

假如属性的值仍然是空白的，那么会设置一个默认的值。

youdao

At which point, presumably, the rest of the eurozone would have to accept a Greek default and a much more significant reduction in the value of what the country has to repay than the implied 21% that has been allowed so far.

BBC: Can Merkel and Sarkozy turn the tide of markets?

Meanwhile their shares, which would normally be the most worthless securities in a default, suggest that the firms still have substantial value.

ECONOMIST: American securities markets

Unless the ECB were to do something stupid, a debt default by Greece would have no impact upon the value of the euro, so the Greek economy would still have a viable currency.

FORBES: Earth to Greece: It's Over