The collection quality control in hybrid library contains quality control of collection resources, quality control of materials structure and collection quality assessment, etc.

复合图书馆馆藏质量控制的内容包括馆藏资源质量控制、馆藏结构质量控制和馆藏质量评价等方面。

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This paper introduces some new kinds of nonwoven battery separator materials by describing separator materials structure as well as properties, with domestic situation presently.

本文通过对隔膜产品的结构、性能描述，结合目前国内状况介绍了几种新型非织造电池隔膜材料。

youdao

Today technology has progressed to the point where it is possible to invent new building materials to suit the type of structure desired.

今天的技术已经发展到可以发明新的建筑材料来适应所需要的结构类型。

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But in the next four years he had the pleasure of proving them wrong--and showing how an STM could virtually excavate the structure of materials such as semiconductors and superconductors.

FORBES: The Titan of the Teensy

Such precise control over the material's structure makes possible materials with useful but unusual properties.

ECONOMIST: MONITOR

By reading the returning signals, the machines can identify the molecular structure of the materials it contains.

ECONOMIST: Airport screening technology