Usually, a wildfire begins because of a combination of sizzling temperatures, low humidity and hot, dry winds that gather pace as they funnel through the canyons and blow down power lines.

通常，火灾发生的原因是在温度过高、湿度太低时干风吹过峡谷吹倒电线杆时聚集。

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Methods:The ways of hot plate test, feet swelling test, funnel test, sheet glass test were used.

方法：采用热板法、足肿胀法、漏斗法、玻片法。

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From now we will funnel them into the mountain pass we call the Hot Gates.

那时我们就把他们集中到我们称作温泉关的山口里。

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The remedy for toothache suggests cauterising the skin behind the ears before heating the plant henbane and leek seeds over hot coals and ensuring the patient inhales the smoke through a funnel.

BBC: Medieval teeth 'better than Baldrick's'

This is the height of tornado season across much of the American Midwest, when the changing seasons bring that peculiar mix of moisture, hot and cold temperatures and varying atmospheric pressure that creates a funnel of death.

WSJ: Review & Outlook: Path of Destruction