D is for dry.

D是干燥的意思。

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Besides. the dry weight of mature seeds Q is also controlled by the duration of development measured in number of days, d, of the corn seeds.

在成熟期，籽粒干重不仅与籽粒发育期间的平均气温有关，还与籽粒发育所经历的天数有关。

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Wipe away all loose dirt and moisture from the pipe O. D. and fitting I. D. with a clean, dry cotton rag. DO NOT ATTEMPT TO JOIN WET SURFACES.

用清洁干燥的面质布擦去管道外径和管件内径上所有松垮的污垢和湿气。不要试图连接潮湿的表面。

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So, not at a horribly advanced age, I would like to think, he went to Lyon, which was a capital of the Resistance because they have all these things called traboules in Lyon, was one reason--they're passageways where you'd keep the silk, raw silk dry.

他当时还没到混吃等死的地步,我个人觉得,于是他去了里昂,当时是抵抗组织的一个首都,因为里昂那有那种过道,这是一个原因--就是小胡同,能让丝绸,生丝保持干燥

耶鲁公开课 - 1871年后的法国课程节选

But record-setting Toledo turned out to be a costly dry hole, illustrating the fact that even in these days of space-age 3-D seismic studies, wildcatting is still a risky business.

FORBES: On The Cover/Top Stories

So if you take a chance on GeoEye, you'd better have confidence that federal funding for private-sector satellite imagery won't dry up.

FORBES: In The Beltway Orbit: GeoEye

But now, NeuroSky (a fab(u)less startup of US chip designers and Russian neuroscientists chillin' in NorCal) claims a "breakthrough" in non-invasive neural sensors allowing low-cost, dry (no contact gels) neural mapping solutions to be applied to those things you'd most like to mind control (spouse, voters, TV, game console, cellphone).

ENGADGET: NeuroSky to offer thought control without those pesky brain implants