In the moving field of loose mine-rock under the ideal condition, the density field is uniform and constant.

在散体移动场中，对于理想散体，密度场为均匀场和定常场；

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Constructs basketball court 3, gymnastics moving field 1, 400 meter standard ring-like track and field area 1, has provided the advantage for teachers' and students' sports.

建有篮球场3个，体操活动场1个，400米标准环形田径场1个，为师生的体育活动提供了有利条件。

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But the field of e-health, as it's called,is moving forward, and some of the most notable advances are happening in developing countries.

VOA: standard.2010.02.24

Medtronic has been publicly traded since 1959 and has been listed on the New York Stock Exchange since 1977, which in such a fast-moving field makes it positively venerable.

FORBES: Medtronic Gets A Pain In The Back

"Pretty academic people are moving into this field, " says Cadogan, shaking his bald head.

FORBES: The Google Industrial Complex

Salter Sink is the product of that collaboration and is rapidly moving the nascent field of Hurricane Suppression out of the lab.

FORBES: Hacking the Planet for Profit