Subsequent lava flows deposited volcanic rocks up to 20 meters (65 feet) thick in some places.

而熔岩沉积物又使一些地方火山岩岩层厚达20米(65英尺)。

youdao

A empirical formula is given for the strength-depth relationship of soils at 10 to 20 meters dcpth.

提出了上海地区自地表以下10～20米范围内天然强度的经验公式；

youdao

We can find out that from 2 meters to 20 meters is a difficulty for the several mainly electromagnetic methods, but this domain is closed related with human's activity.

由此可见，地下2～20米范围对于以上几种方法来说都是一个困难，而这一范围却与人类活动极为密切。

youdao

We found the maximum height to be 20 meters.

我们发现最大高度为20米

耶鲁公开课 - 基础物理课程节选

Now the camera can be triggered from up to 20 meters (66 feet) away, and a direct line of sight is not necessary.

ENGADGET: Nikon D5200 to reach US photographers in late January for $900

In related news, Sony Ericsson countered Nokia's announcement by declaring they would be developing a handset capable of sending smoke signals visible up to 20 meters away.

ENGADGET: Nokia files patent for Morse Code-generating cellphone

Subsequently, she plummeted a few feet down onto the subway tracks, only to be saved by a station worker who fearlessly hopped down to rescue her SMS-focused mind (and body, too) as the oncoming train screeched to a halt just 20 meters before running her over.

ENGADGET: Woman plummets onto subway tracks while carelessly texting