Collection, storage and handling of plant genetic resources and their global distribution are essential components of international crop and tree improvement programmes.

植物遗传资源的收集、存储和处理以及它们在全球的分布，是国际作物和树木改良计划的重要成分。

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The essential Unified Process (EssUP) is a collection of practices that together form the essential knowledge of a complete software development lifecycle.

核心统一过程(EssUP)是实践的集合，这些实践组成了完整软件开发周期的核心知识体系。

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Caps are an essential part of a winter collection.

在冬天的单品中，帽子具有十分特殊的作用。

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The Universal Classic Monsters: The Essential Collection includes the original version of this chilling and evocative tale, as well as the rarely seen Spanish version of Dracula.

ENGADGET: Dracula, The Mummy and six other horror classics coming in a Blu-ray set October 2nd (video)

Sure to be a Halloween favorite for years to come, Universal Classic Monsters: The Essential Collection is the ideal gift for film buffs and horror aficionados alike.

ENGADGET: Dracula, The Mummy and six other horror classics coming in a Blu-ray set October 2nd (video)

Universal Classic Monsters: The Essential Collection honors the studio's accomplishments with the most iconic monsters in motion-picture history including Dracula, Frankenstein, The Mummy, The Invisible Man, Bride of Frankenstein, The Wolf Man, Phantom of the Opera and Creature from the Black Lagoon.

ENGADGET: Dracula, The Mummy and six other horror classics coming in a Blu-ray set October 2nd (video)