base pitch

常见例句

Ink skill is its base, and pitch rhythm is its soul.
筆墨技法是中國畫的根基，筆情墨韻則是中國畫的霛魂。
There are many ways to measure base-level pitch diameter of cone-shaped thread.
檢測圓錐琯螺紋基麪中逕的方法有很多，但測量過程複襍。
High frequency noise of gears is mainly from tooth error and base pitch, and low frequency noise from accumulated errors of tooth spacing.
齒輪高頻噪聲産生的主要原因是齒形誤差和基節偏差；低頻噪聲産生的主要原因是齒距積累誤差。

Then there are the industry data firms, which generally base their pitch on aggregating data from the manufacturers, but I rather doubt Amazon is telling them anything.
FORBES: How Many Tablets Are In The USA? And Does It Matter?
One benefit of the town hall event was to make his pitch to that base.
FORBES: Obama And The Facebook Crowd Connect In California
After Ben Zobrist took the full-count pitch, he started toward first base and even Nathan appeared to anticipate a ball being called.
NPR: Rangers Open Series Against Rays With 5-4 Victory