double barrel

基本解釋

The main circuit uses the double barrel pair to stir up the topology, and uses the pulse electric current comparison control technology and soft switch technology.
主電路采用雙管雙正激拓?fù)浣Y(jié)構(gòu)，采用了逐脈沖電流比較控制技術(shù)和軟開(kāi)關(guān)技術(shù)。
This paper introduces the principle of double barrel drum mix plant and the application in producing the asphalt mixture, aiming at the rounding town project of Foshan.
闡述了雙滾筒連續(xù)式拌和樓的工作原理，并以佛山一環(huán)城際快速路為工程依托，介紹其在瀝青混合料生產(chǎn)中的應(yīng)用。
In accordance with this problem, a new pump of small diameter with double barrel has been developed. Experimental study of the deep pumping process has been conducted and attained a success.
針對(duì)這一問(wèn)題，研究設(shè)計(jì)新型雙筒式小直徑抽油泵，進(jìn)行了深抽采油工藝技術(shù)的試驗(yàn)研究，獲得了成功，取得了良好的經(jīng)濟(jì)及社會(huì)效益。

And as I understand it, he has a double-barrel -- he has a 12-gauge and a 20-gauge.
WHITEHOUSE: Press Briefing
What this chart does not reflect, however, is the influence of the high-yield market, which delivered a double-barrel technical boost to the loan market in August.
FORBES: Connect
It remains to be seen how Iraq could impact oil prices, but the price per barrel for crude has seen double-digit declines over the past month.
FORBES: Saudi Arabia Keeps OPEC Spigots Open