美国工程兵旋转压实剪切实验机(gtm)是美国空军为解决最大最重的轰炸机柔性跑道容易出现问题而专门研究发明的。
Engineers' gyratory testing machine (GTM) of U. s Corps was invented to solve questions which happened on flexible pavement, once used by the biggest and the most heavy bomber.
上周六,为了缓解暴涨的密西西比河的压力,陆军工程兵打开了防洪闸门,美国路易斯安那州数千人被撤离。
Thousands of people in the American state of Louisiana are being evacuated after floodgates were opened on Saturday to relieve pressure from the swollen Mississippi River.
上周六,为了缓解暴涨的密西西比河的压力,陆军工程兵打开了防洪闸门,美国路易斯安那州数千人被撤离。
Thousands of people in the American state of Louisiana are being evacuated after floodgates were opened on Saturday to relieve pressure from the swollen Mississippi River.
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