Based on the principle of mass balance, the Pseudo-Level Depth Finder can attain the true level by testing annular gas rate.

根据物质平衡方法设计的拟液面测试仪，可通过测试油井环空排气量来确定油井的真实液面。

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This interviewer really thought that they were on the same level of depth and understanding as the person they were talking with.

这位采访者当真把自己放在和正在和他谈话的人相同的深度和洞察水平上。

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If you can get that level of depth of field for that cheap in order to single out your subjects in your photos, why not go for it?

如果你发现能花这么少的钱来取得这么浅的景深——足以把你的对象在相片中突出，为什么不马上配备一个呢。

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Firms will provide an additional level of depth to the analysis of consumer behaviour.

FORBES: Big Miss On Consumer Sentiment But Barclays Raises Q3 GDP To 2.5%

But wearables are superficial by nature and cannot provide the level of in-depth data of embedded sensors being developed for the body.

CNN: The wave of wearable computers

"Some of the best juniors are more than capable of competing at senior level, but the depth is just not there in the junior ranks, " he said.

BBC: James Huckle set for Commonwealth Games bow