Objective: to study the angiotensin I converting enzyme (ACE) gene frequencies distribution on normal Chinese of Han nationality in Nantong area.

目的：研究南通地区健康汉族人血管紧张素转换酶(ace)基因频率分布。

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The distribution and frequencies of drought in different degree were determined.

确定了不同程度的干旱在区域上的分布特征及其发生频率。

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After working with religious broadcaster Pat Robertson, Johnson Sr. realized his biggest barrier was distribution, so he applied for the first allocation of direct broadcast satellite frequencies in 1980 and won eight.

FORBES: The Tiny TV Broadcaster That Cable And Internet Giants Are Trying To Kill