disappears when extract returns.
Любовь Ширижик (Старший редактор отдела «Силовые структуры»)
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格里爾強調「我們會信守承諾。我們也期望我們的夥伴信守承諾」。
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
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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.