base pitch

常见例句

Ink skill is its base, and pitch rhythm is its soul.
笔墨技法是中国画的根基，笔情墨韵则是中国画的灵魂。
There are many ways to measure base-level pitch diameter of cone-shaped thread.
检测圆锥管螺纹基面中径的方法有很多，但测量过程复杂。
High frequency noise of gears is mainly from tooth error and base pitch, and low frequency noise from accumulated errors of tooth spacing.
齿轮高频噪声产生的主要原因是齿形误差和基节偏差；低频噪声产生的主要原因是齿距积累误差。

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