S&P500是什么意思

用法例句

Study on the relation of the standards,quality and praduction of the chemical products;

试论化工产品的标准、质量和生产的关系

Discussion of Perfecting Standard System of Domestic Ecological Textiles;

浅论我国生态纺织品标准体系的完善

Acceptance standards and attention needing issues related to mining project construction;

矿山建设项目竣工验收标准和应注意的问题

Wrought aluminum sheet tolerance contrasts between foreign and Chinese standards;

国内外变形铝合金板材标准尺寸偏差对比

Review of management regulations and standards on food additives in the world;

国内外食品添加剂管理法规与标准概述

On the assessment methodology and standards for nutrition status in channel type reservoirs based on zoning of eutrophication sensitivity;

河道型水库基于敏感性分区的营养状态标准与评价方法研究

Review and prospect of China surfactant and detergent standardization Secretariat of China Surfactant and Detergent Standardization Technology Committee;

中国表面活性剂和洗涤用品标准化回顾及展望

Status and countermeasure of MEMS sensors standardization;

MEMS传感器的标准化现状与发展对策

Discussion of criterion on“the vacuum freeze-drying equipment for food”;

关于《食品真空冷冻干燥设备》标准的探讨

The classification and evaluation criterion of low permeability reservoir:An example from Ordos Basin;

论低渗透储层的分类与评价标准——以鄂尔多斯盆地为例

The necessity of establishing perfect criterion of fermented soy sauce,vinegar and blended soy sauce,vinegar;

亟待制定酿造酱油、食醋和配制酱油、食醋统一的完善的标准(上)