Good controls and practices during primary production, processing, distribution and sale are all essential to the production of safe food.

初级生产、加工、分发和销售中良好的控制与操作，对安全食品的生产来说都必不可少。

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If a primary key is specified in the CREATE TABLE statement, the first column of the primary key is used as the distribution key.

如果在CREATE table语句中指定了一个主键，那么主键的首列会被用作分配键。

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In Norway, poor physician distribution between urban and rural areas has been persistent, particularly in the north, where in 1997 a total of 28% of the primary care physician positions were vacant.

在挪威，城市和农村在医生分配上的差距一直存在，尤其是在北部地区。1997年，挪威北部地区有28%的初级保健医师职位是空缺的。

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Generation of income account is a constituent element of primary distribution of income accounts.

UNESCO: Belarus: Report: Part I: Descriptive Section

Allocation of primary income account is the second constituent of the primary distribution of income accounts.

UNESCO: Belarus: Report: Part I: Descriptive Section

With more than 38 million registered users, SoundCloud is fast becoming a primary means of music distribution for artists large and small, all of whom can publish music as they please without worrying about complicated licensing agreements.

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