Observation is particularly important where there is no permanent record of activities –discrete observation can reveal whether there is improper access to a restricted area.

对于没有持续性记录的活动来说，实地观察法是一种非常有效的方法。持续的观察可以发现是否有不正确进入受限制区域的行为。

youdao

Access to this area is restricted to military personnel.

只有军事人员可以进入该地区。

youdao

Live broadcast IDs provide access to the area restricted for live broadcast and broadcast transmission.

直播证件通行范围为划定媒体直播、转播区域。

youdao

Large numbers of riot police ringed the area and restricted access to the court from dawn.

ECONOMIST: Malaysia

He recommended access to the area be restricted and that warning signs be erected by the developer.

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