The near-zone field of the handset with an earphone is calculated by the finite -difference time-domain (FDTD) method.

利用时域有限差分（FDTD）法分析了耳机引线对手机天线辐射近场的影响。

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In the add this Web site to the zone field, enter the Web address of the host name so that single sign-on (SSO) can be enabled to the list of Web sites shown in the Web sites field.

在Add this Web site to the zone字段中，输入主机名的Web地址，这样就能在Web sites字段中的Web站点列表上启用单点登录(SSO)。

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We believe the building of the China-Peru Free trade Zone is conductive to promoting the mutually beneficial cooperation in the economic and trade field between the two countries.

我们相信，中秘自贸区建设有利于推动两国经贸领域的互利合作。

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"Working in a field hospital outside of a nuclear,contaminated zone is a little different than working in a combat zone in Iraq or Afghanistan."

VOA: standard.2010.07.26

But now, Levinson and Desmond-Hellmann are heading out of their comfort zone into a new field: immunology, which focuses on how the body's own defense systems go awry to cause disorders like rheumatoid arthritis, asthma and multiple sclerosis.

FORBES: Magazine Article

Previously, a high school could sell space in the end zone, or signage around the field, or even sell naming rights to the stadium itself.

FORBES: Your High School's Football Field Just Became Ad Space

In this scheme, the Patriots' safeties divided the field in half and played zone defense.

WSJ: Jets Have Reasons to Believe