The automatic voxel-based spatial normalization methods which were used widely were highly precise but time consuming.

过去被广泛使用的基于体素的自动化归一化方法虽然很精确，但很耗时。

youdao

youdao

But that's a time consuming and expensive task that is open to abuse.

但那是一项耗时且昂贵的工程。

youdao

The provisional voter list was originally scheduled for publication in late August, but processing registration data for the country's some 6.5 million identified voters proved time-consuming.

VOA: standard.2009.09.29

But it's really difficult and really time-consuming.

但是很难，很花时间。

要成为建筑家 - SpeakingMax英语口语达人

Kingfisher, the world's only Skytrax Five Star-ranked domestic airline (now also with flights to and from London, Dubai, Hong, Bangkok, Kathmandu and Singapore) makes life easy for those who do not have time to take India's scenic, but time-consuming trains.

BBC: Smooth skies: The world's best airlines

Balloons can work but are time-consuming, and they are slaves to wind and pesky guide wires.

FORBES: Eye in the Sky

It is possible to make a solar cell this way, but it is time-consuming and expensive.

ECONOMIST: Monitor