In 2009 an old Russian craft slammed into a communications satellite, creating a cloud of hundreds of pieces of debris and putting other hardware at risk.
2009年，一艘旧的俄罗斯飞船撞上了一颗通讯卫星，形成了由数百片碎片组成的云团，危及其他硬件设备。
2
Those who had during middle age been busy reading, playing games or engaging in craft hobbies like patchworking or knitting were found to have a 40% reduced riskof memory impairment.
那些中年时忙于读书、玩游戏或是忙于拼布、编织等手工爱好的人，其记忆力衰退的可能性降低了40%。
3
Environment risk analysis of dam debacle in tailing pond in rainstorm for construction of phosphorite beneficiation plant with the craft of reelection-flotation was studied.