Other labs have experimented with similar nanopore-based approaches to sequencing but have found it difficult to control how quickly the DNA strand feeds through the nanoscale hole.

其他实验室已经试验过类似的纳米孔测序方法，但研究人员发现，很难控制DNA链穿过纳米孔的速度。

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Security experts say Stuxnet attacked the software in specialized industrial control equipment made by Siemens by exploiting a previously unknown hole in the Windows operating system.

安全专家称，该病毒通过利用Windows操作系统以前的未知漏洞专门袭击西门子控制设备。

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The machining quality of the hole is difficult to control because of the interactional complexity between laser and material.

由于激光与材料相互作用的复杂性，使得小孔加工质量很难控制。

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And the mud that had to be shoved down the hole to keep it under control in recent months has now been cleaned out of the hole.

FORBES: Davy Jones #1 Well Flow Test Appears Imminent

Furyk struggled in the early stages of the 36-hole event before taking control in the middle of his round, making six birdies and one bogey.

BBC: SPORT | Golf | Furyk storms clear

Davy Jones was so eager to cough up its bounty from a massive high-quality reservoir 200 feet thick that McMoran several months ago had to control the flow by filling the hole heavy drilling mud.

FORBES: Updated 11:30 Central.