To accurately control the amount of force applied to the bit, the driller carefully monitors the surface weight measured while the bit is just off the bottom of the wellbore.

为准确地控制施加于钻头上的力的大小，当钻头刚刚离开井底时司钻要仔细监测地表测得的重量。

youdao

The authors say that this finding may mean that even apparently healthy women have, under the surface, issues related to food, weight and body image.

作者说，这一发现也许意味着即使是看起来健康的妇女在心底也会隐藏着有跟食物、体重和身材相关的问题。

youdao

A good rule of thumb is to replace your running shoes every 300 to 400 miles, depending on your running style, body weight, and the surface on which you run.

在一个好的经验是，每300到400英里时，就更换你的跑鞋，这也取决于你的跑步方式，体重，以及在什么地方跑步。

youdao

The total weight of equipment remaining on the lunar surface is about two thousand two hundred sixty eight kilograms.

VOA: special.2010.03.02

This would be an average adult male, 30 years old, the average height and weight, and surface area and temperature, and lots of characteristics of an average person.

包括普通成年男性,三十岁,平均身高和体重,平均表面积和体温,还有许多其他数据

耶鲁公开课 - 生物医学工程探索课程节选

Because of their unique surface, each medal is struck with 12 dies nine times with 1,900 tons of pressure, the weight of more than The native designs were laser-engraved on each medal.

VOA: standard.2010.02.16

Weight: The Surface weighs two pounds and is about a half inch thick.

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The family of these materials includes much-touted, carbon-based members such as graphene and nanotubes, and are notable in part for their surface area-to-weight ratio.

BBC: 'White graphene' soaks up pollutants and can be re-used

Airships demonstrate a law of increasing returns: doubling the length increases the surface area (and hence weight) by a factor of four while the volume (and hence lifting capacity) goes up by a factor of eight.

ECONOMIST: Pushing the envelope