In major productions, both may be used.

在主要的产品，都可以使用。

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History has witnessed the endless productions of Shakespearean plays in every major language of the world.

历史上，以世界各种主要语言改编的莎士比亚戏剧上演了一次又一次。

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The greenstone belt type gold deposit in the North China craton (NCC), one of the most important deposit types in China, is the major source of gold productions and reserves.

华北克拉通中绿岩带型金矿床是我国最重要的矿床类型之一 ，也是我国黄金产量和储量的主要来源 。

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The Welsh film industry has warned it could lose major drama productions to England because it is illegal for actors to smoke on film sets in Wales.

BBC: Wales smoking ban forced Casualty story change says

It is a major inducement compared to those typically offered in America, where states often give tax breaks to movie and TV productions to film within their borders.

NPR: Australia Puts $22.6M Into '20,000 Leagues' Remake