reference frame

基本解释

In the reference frame...
在惯性参考系中。
They're actively and deliberately navigating within some sort of external reference frame.
它们积极地并且有意识的在一些外部参考框架进行了导航。
The answer is no, because it's impossible to be sure that your reference frame is without any accelerations.
答案是否定的，因为我们不能将其确定下来,我们选用的参考系是否有加速度存在。

I gave you a law of transformation of the components; namely, if the vector has components Ax and Ay in one reference frame and Ax prime and Ay prime in another reference frame, how are the two related?
我介绍过分量变换的法则,即如果矢量在一个坐标系的分量为 Ax 和 Ay,在另一坐标系中的分量为 Ax' 与 Ay',它们有着什么样的联系
耶鲁公开课 - 基础物理课程节选
So the Earth is an inertial frame of reference, if you go in a train relative to the Earth at constant velocity, you're also inertial.
所以,地球是一个惯性参考系,如果你坐在相对于地球匀速运动的火车里,你也处于惯性状态
耶鲁公开课 - 基础物理课程节选
Then we've just shown here, it's an accelerated frame of reference.
就像这里写的一样,它是个有加速度的参考系
耶鲁公开课 - 基础物理课程节选

Some reform-minded Republicans recognize the problem, but approach the solution from a rather narrow frame of reference.
FORBES: Actually, The GOP Will Struggle To Capitalize On Obama's Perfect Storm Of Scandals

坐标系
On the basis of analyzing the motor’s mathematic model in the a -β reference frame, the system is set up and the DTC project is formulated.
在定子坐标系下建立三相电机数学模型的基础上，深入研究了直接转矩控制方法，给出控制方案。
参考图框
参考帧

参考框架
After network adjustment, the relative accuracy of baseline horizontal components is about 1×10 -8 . The ECEF coordinate accuracy of thd A Order points in ITRF91 Reference Frame is beter than 0.2m.
平差后基线水平方向相对精度约为1×10-8，A级网点在ITRF91参考框架中的地心坐标精度优于02m。
坐标系
Based on the prevenient research, the paper summarizes many taches in the course of preprocessing of geochemical data,and uses more methods to preprocess such as missing data processing,redundant data processing,data transformation and unification of data reference frame,etc.
如遗漏数据处理、冗余数据处理、数据转换、数据坐标系统一等主要环节。
物理学
参考系
参照系
参考坐标系