camera depression angle 照相机俯角
angle of depression 低降角 ; 眼高差
rocket depression angle 火箭补充修正角
A down-looking radar was limited by a critical depression Angle when it detects the target on the ground.
俯视雷达测量地面目标时会受到临界俯角的限制。
Traffic sign' s depression angle setting above road has not been regulated in detail by GB5768-1999, and there is no pertinent applied example.
现行国标GB5768-1999中对路上交通标志设置俯角没有详细规定，也缺少相关应用范例。
Shooting Angle with the main emphasis. It should be noted, does not apply extreme Angle of depression or elevation.
用拍摄角度来着重强调主体。但须注意，不应用极度的俯角或仰角。
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