This system is mainly a long tube, called the alimentary canal.

这一系统主要是一根长管，称作消化道。

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Michael works on P.I., hunched over a long tube of PVC piping. He calls out to a nearby C.O. that he needs to grab more.

在PI工作中，Michael向前倾身，处理一条长的PVC管，他向附近的一个狱警请示说需要去拿更多的PVC管。

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It marks a vast improvement on an older technique that involves pushing a long tube through a patient's digestive tract.

这相比过去将长长的胃管导入患者消化道的旧式技术，无疑是一个巨大的进步。

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Another popular type, the quill mum,has long, straight petals like a tube or needle.

VOA: special.2010.06.29

We have come a long way from the gas discharge tube to the heavens.

我们在从气体放电管到,世界还有很长的路要走。

麻省理工公开课 - 固态化学导论课程节选

Doctors place a long thin tube called a catheter into the heart.

VOA: special.2010.03.02

The women trudge through the city for 48 hours wearing special backpacks, each with a long tube that is slung over the shoulder.

CNN: Toxic chemicals finding their way into the womb

TOHL, which stands for Tubing Operations for Humanitarian Logistics, has developed a simple method to deliver fresh water for emergency relief: install a really long plastic tube with a helicopter.

FORBES: Startup Aims To Install Pipelines With Helicopters...Seriously!

At a lunch at One Market in San Francisco, Chris Gronet, a Solyndra founder and then-chief executive, pulled from a case a long cylindrical tube that was coated in thin-film solar cells.

FORBES: What Solyndra's Bankruptcy Means For Silicon Valley Solar Startups