A classic VB source volume controller, containing a user group and user controls.

一个经典的VB音量控制器源码，含一个用户类和用户控件。

youdao

Other new features include a new digital amplifier, a Bluetooth remote, and a settings memory to remember your source, volume and EQ levels for next time.

ENGADGET

Create detailed buildups for meaningful line items, such as revenue (price x volume by source), cost of goods sold (cost x volume), personnel (by each employee) and marketing (by channel).

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Instead of alcohol, it runs on butane, a cheap and far more potent source of energy by volume.

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