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- Or your reference frame is at rest in an aircraft that accelerates rapidly on takeoff .
另外,你的參照系靜止在一架起飛之后迅速加速的飛機上。 - Newton's first two laws hold only when observed in unaccelerated reference frames .
牛頓第一、第二定律只有在非加速的參照系中作觀察時才是成立的。 - We now wish to determine the lengths of these rods when viewed from a moving reference frame .
現在我們想確定,當從運動的參照系看時,這些桿有多長。 - It is an established convention to speak of the fixed stars as a standard unaccelerated reference frame .
把固定的恒星說成是標準的非加速參照系,這是一種已經確立的習慣。 - This equation describes the transformation of the determinant 9 from one reference frame to another .
這個方程式給出了從一個參照標架轉到另一個參照標架時行列式9的變換式。 - It is particularly important to understand forces that act in a reference frame in circular motion .
特別重要的是,我們一定要搞清楚在作圓周運動的參照系中起作用的那些力。 - This proves that any tensor equation which holds true in one reference frame is also true in any other frame .
這證明了在一個參照標架中成立的任一張量方程,在另一參照標架中也成立。 - Deduction of bernoulli equation at non - inertial reference frame
非慣性參照系下的伯努利方程式的推導 - Datum reference frames
基準參考框架 - Natural reference frame
自然參考架