To combat the dangerous working conditions, bridge designer Joseph Strauss introduced the hard hat and a safety net that stretched end to end under the bridge. Nineteen workers fell.

为了要对抗危险的工作环境，桥梁设计师约瑟夫·史特劳斯(Joseph Strauss)引进了安全帽，并且在桥梁下方两端绑上一个安全网，因而拯救了19位坠落的工人。

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Objective to evaluate the safety and efficacy of the endovascular interventional techniques for the management of emergent hepatic artery thrombosis (HAT) after orthotopic liver transplantation (OLT).

目的评价用血管内介入放射学技术治疗原位肝移植后急性肝动脉血栓形成(HAT)的安全性和疗效。

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Along with a hard hat, hi-viz vest and safety boots.

我的英联邦运动会门票寄来了…附赠安全帽，救生背心，和安全靴。

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Stevenson, nicknamed The Cat in the Hat because of the fact that he wears a black street hockey safety helmet, claimed silver with 5.90m.

CNN: Mack pulls off a last-gasp victory

It is reported that the queen likes a travel rug round her knees and used to wear a hard hat when watching stallions cover her mares (now she stands on a viewing platform, after health and safety advice).

ECONOMIST: Why the queen has to be seen to be believed