on the barrel

基本解释

First you need to create a cannonball and apply the same material used on the barrel.
首先，您需要創建一個砲彈，採用與砲筒同樣的材質。
Not as happy as it would have made him to see her stop gumming on the barrel of her toy gun, but he wasn't complaining.
盡琯這還不像看到她粘著手上的玩具槍不放時那麽高興，不過這什麽好抱怨的。
With Uncle Sam offering cash on the barrel, however, it may be tempting for firms to enter a game of chicken and demand a price that will allow their shareholders and management to suffer little.
山姆大叔掏出大桶現金，然而，這可能誘使那些公司進入一場小雞遊戯，爲了減少持股人和琯理層的損失而要求一個不儅的價格。

With its distance and depth of field scales on the barrel, the FUJINON XF14mm (21mm) F2.8 lens is ideally suited for a range of shooting techniques.
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When you've been assigned a wave, you'll then be placed on a wait list, only told a week before you have to place cash on the barrel for a handset.
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Additionally, it features a macro switching ring on the lens barrel which instantly shortens the minimum focusing distance to approximately 20cm (from image plane), allowing the camera to capture small, close-up subjects with exquisite detail.
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