Note 1: Stroke speed is usually expressed as a number of strokes per minute. When the system scans in both directions, the stroke speed is twice this number.
Note 2: In most conventional mechanical systems, the stroke speed is equivalent to drum speed[?].
Source: from Federal Standard 1037C and from MIL-STD-188
... the dam, which means that as the channel grows narrower towards the bottom of the dam the central angle subtended by the face of the dam becomes smaller. I ...
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