这段英文啥意思

这段英文啥意思

题目
这段英文啥意思
The key was to use a pulley system that would magnify the applied force.So they rigged up a tent-shaped scaffold directly above the tip of the horizontal column,with pulleys suspended from the scaffolds apex.The idea was that as one end of the column rose,the base would roll across the ground on a trolley.
怎么都不看不懂.谁能给我讲讲
答案
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
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想找英语初三上学期的首字母填空练习……
英语翻译
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