He describes how to use class wrapping of the JDBC driver, connection, statement, and result set objects to instrument JDBC, and hence, database calls.

他介绍了如何使用JDBC驱动、连接、语句、结果集对象的类包装来工具化jdbc，并由此工具化数据库调用。

youdao

The result may be a sludge-like soup, apparently lifeless-hence the name dead zones-but in truth teeming with simple, and often toxic, organisms.

结果可能是象泥汤一样，明显地没有生气(因此叫死区)，但是实际上充满着简单的、经常有毒的生物体。

youdao

The efficiency will be increased and hence the total cost will be lower as a result.

的效率将增加，因此，结果是总成本会较低。

youdao

The beauty of the free-market price system is that all prices are the result of voluntary exchange and, hence, reflect the personal preferences of all members of society.

FORBES: Since Monetary Spending Is Unequal, Who Spends Wisest?

As a result, real incomes and hence consumer spending have grown more sluggishly in the euro zone.

ECONOMIST: The halo effect | The

Hence these products threaten livelihoods of low-income earners and can even result in the death of those who cannot afford their food any more.

BBC: 'Dangerous' financial products named