Sputnik - the first artificial satellite - is launched by the Soviet Union on October 4, 1957, as a global positioning system for precise weapon delivery and paves the way for GPS as we know it today.

1957年10月4日，苏联发射了首颗人造卫星“斯普特尼克”作为精准武器的全球定位系统，为我们今天所知的GPS铺平了道路。

youdao

This article reviewed the therapeutic use of chitosan as artificial lacrima, medical viscoelastic material, carrier of drug delivery systems and so on in ophthalmic disease.

本文就壳聚糖作为人工泪液、医用粘弹剂、药物缓释系统载体、抗纤维增生药物等的应用进行简要的介绍。

youdao

Objective: To observe the influence of carrying out artificial rupturing membrane in early activity period on birth process progress and delivery.

观察在活跃早期行人工破膜对产程进展及分娩的影响。

youdao

Instead of focusing on delivery there was too much stress on "artificial targets".

BBC: Digital divide sees elderly 'left behind'