The collected ground true data includes topography map with scale of 1:50 000 and the corresponding Digital Elevation Model (DEM).

收集的地理实况数据包括1：5万的地形图和根据该地形图经数字化处理生成的数字高程模型(dem)。

youdao

That might be true or at least plausible if, in order to have a basis, plagiarism would have to stand on some philosophical ground.

这么说也许是对的，至少是有一定道理的：如果是为了找出一个基础，剽窃问题就必须有一定的哲学依据。

youdao

I stared at the ground, realizing that I did not know the true answer.

我看着地面，想到我自己并不知道真正的答案。

youdao

Conversely, if you get an answer and it doesn't seem to make sense, then you've got to go back and ask, am I violating some of the assumptions, and here you will find the assumption that the particle had that acceleration a is true as long it's freely falling under gravity but not when you hit the ground.

反过来说,如果你得到一个结果,发现似乎是错的,那么你就应该回过头来问问自己,我是不是违反某些前提了,这个模型中,你就发现,只要质点在重力作用下自由下落,质点具有加速度a的前提是正确的,但是落地后就不成立了

耶鲁公开课 - 基础物理课程节选

Alternatively, markets such as Singapore that have force-fed innovation will lose ground to the true entrepreneur markets.

FORBES: Predicting 10 Trends For Startup Asia As 2013 Unfolds

"A lot of these models are FDA approved for these companies so that they can use it as a true proving ground to get to the next level of testing, " Martindale told CNN.

CNN: Hearts of glass: Where medical science meets art

There is a tried-and-true middle ground.

CNN: ASIANOW - TIME Asia