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老人瘫倒在麻将桌,古剑奇谭有破解版吗,女欢女爱
来源: www.sxz58.com 发布时间:2019-2-25
老人瘫倒在麻将桌,古剑奇谭有破解版吗,女欢女爱

By the end of the year, a 3D-printed bridge will be put to use in China for the first time. 我国一条3D打印桥梁将在年底首次投入使用。 Different from traditional bridges, its novel design doesn't use reinforced concrete. 与传统桥梁不同,这座创新性设计的3D桥梁没有使用钢筋混凝土。 It is made of resin designed to weather rain and sun for an extended period, and that's durable enough to meet national construction industry standards. 它是由树脂制成,能承受长期的日晒雨淋,其耐久性足以满足国家建筑行业的标准。 If parts of the bridge become damaged, they can be repaired separately. 如果桥梁的某些部分损坏了,可以单独进行修理。

The 15-meter-long footbridge in Shanghai will take 35 days to build, and will have service life of up to 30 years, according to its chief architect. 据总建筑师介绍,这座位于上海的15米长的人行桥共耗时35天来建造,使用寿命可长达30年。 The complex curved surfaces of the bridge can only be achieved using 3D printing technology. Based on laboratory testing, it can bear a load of 250 kilograms per square meter. 桥梁的复杂曲面只能通过3D打印技术来实现。经实验室检测,该桥每平方米可以荷载250公斤。 This isn't the first time that a 3D-printed bridge had been made in China. 其实制作一座3D技术打印桥在我国并非首例。 In July last year, Tongji University in Shanghai made the world's first two 3D-printed pedestrian bridges. But that pair of bridges was only build as a demonstration, and not for actual use. 去年7月,上海同济大学内就有全球第一组3D打印完成的步行桥。但当时那两座桥只用于展示,不能实际使用。

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