Passes the hoisting jack to use the portal frame construction, reduces pushes slides the strength and increases moves a strength.
推移千斤顶采用框架结构，以减少推溜力和增大移架力。
2
In her book Fame and Frame, the celebrity photographer Pat York includes a shot of actor Jack Nicholson walking away from a modest Proven?al cottage, on the chimney of which stands a peacock.
专拍名人的摄影师帕特?约克（Pat York）在其著作《名人与照片的故事》（Fame and Frame）中，选了这样一张照片——影星杰克?尼克尔森（Jack Nicholson）正走出普罗旺斯（Proven?al）的一座不起眼村舍，烟囱顶上蹲着一只孔雀。