论文部分内容阅读
你知道赵州桥吗?它是1300多年前我国隋代建造的石拱桥,是我国古代人民勤劳与智慧的结晶。它的跨度长为37.4m,拱高为7.2m,你能求出主桥拱的半径吗?直立式曲线规是在圆规的基础上,将圆规确定圆心的腿在下三分之一处断开,分成主腿和附腿两部分,各部分之间用旋钮连接,主腿和附腿的连接部位加有轴承装置,主腿和附腿底部都有吸盘。
Do you know Zhaozhou Bridge? It is the stone arch bridge constructed in Sui Dynasty more than 1300 years ago and is the crystallization of hardworking and wisdom of ancient people in our country. It has a span of 37.4m and an arch height of 7.2m. Can you find the radius of the main bridge arch? The upright curve gauge is based on the compass and breaks the leg of the compass in the lower third of the circle , Divided into the main leg and the leg with two parts, each part is connected with the knob, the main leg and the attachment of the leg attachment bearing device, the bottom of the main leg and leg with a suction cup.