It is the difference between theoretical normal pitch and its actual measured value. The major element to influence the pitch errors is the runout of gear flank groove.

推测的法向周节与实际测量值不同。影响周节错误的最主要因素是齿轮侧面有凹槽。

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Trickplay with fast-forward and rewind support w/normal audio pitch

支持正常声音频率下的快进和快退。

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Pitch your voice slightly lower than normal. Listeners tend to associate credibility and authority with a relatively deep voice.

音调要定得比正常讲话时低一些，听众往往把可信度和权威性与一个相对低沉的声音联系在一起。

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Rivera will likely pitch his normal seven or eight innings in spring training games, but could throw additional batting practice sessions or simulated games.

WSJ: Rivera plans to announce if this is final season

The wicket here is a bit different to normal, not quite as true as we have faced before but it's still a very good pitch and a rewarding one for the bowlers if they get it in the right areas.

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