theta

1. 1.

   The eighth letter of the Modern Greek alphabet, ninth in Old Greek: Θ, θ.

   现代希腊语第八个字母,古希腊语第九个字母:Θ, θ。

2. 2.

   The measure of an angle.

   角的度量。

3. 3.

   Pitch angle; the angle between an aircraft's longitudinal axis and the horizontal plane.

   俯仰角；飞行器纵轴与水平面之间的夹角。

4. 4.

   The sensitivity of the value of a derivative with respect to time; the "time decay".

   衍生工具价值对时间的敏感度,即“时间衰减”。

5. 5.

   Designating a level of brain activity as measured by electroencephalography having a frequency of between four and seven cycles per second (associated with drowsiness in adults).

   指脑电图测量的脑活动水平,频率在每秒四到七周之间(与成人困倦相关)。

6. 6.

   The voiceless dental fricative represented by θ.

   由θ表示的清齿摩擦音。

角的度量。；俯仰角；飞行器纵轴与水平面之间的夹角。；衍生工具价值对时间的敏感度,即“时间衰减”。；指脑电图测量的脑活动水平,频率在每秒四到七周之间(与成人困倦相关)。；由θ表示的清齿摩擦音。

Connections

Learner notes