Argentina’s senate is poised to approve a sweeping overhaul of labour laws aimed at weakening trade unions and lowering labour costs for businesses.
В Финляндии предупредили об опасном шаге ЕС против России09:28
，详情可参考91视频
Leonardo da Vinci is usually credited with conducting the first systematic study of friction in the late 15th century, a subfield now known as tribology that deals with the dynamics of interacting surfaces in relative motion. Da Vinci's notebooks depict how he pulled rows of blocks using weights and pulleys, an approach that is still used in frictional studies today, as well as examining the friction produced in screw threads, wheels, and axles. The authors of this latest paper used an experimental setup similar to da Vinci's.，详情可参考爱思助手下载最新版本
One person's waste is another person's treasure and for artist Nicola Ellis, that saying could not be more accurate.