Take translational knife-edge plate cam mechanism for example,by analysis and research,results obtained will provide references for precision of cam mechanism.
以直动尖顶盘形凸轮机构为例,进行分析研究并得出结论,为提高凸轮机构的设计精度提供了理论依据。
centre plunger hydraulic lift
柱塞直顶式液压电梯
hydraulic plunger elevator
液压柱塞直顶式升降机
Study on the Jacking Force Induced by Linear and Curved Pipe Jacking Construction;
直线及曲线顶管施工中的顶推力研究
The airplane zoomed over the top of the mountain.
飞机陡直上升，越过山顶。
"To your hermitage here on the top of the mountain I have climbed, without stopping, these ten miles."
绝顶一茅茨, 直上三十里;
When I get to the top I am huff and puff
我到达顶端时累得直喘
diameter of top circular-arc juncture circle
齿顶圆弧衔接点圆直径
When I got to the top I was huffing and puffing.
我到达顶端时累得直喘.
(architecture) a slender upright spire at the top of a buttress of tower.
（建筑学术语）塔顶上一个很细的直立的尖顶。
What he told you was neither more nor less than nonsense.
他对你讲的话简直无聊透顶。
a straight body with a sharp point at the top.
垂直的楼身加一个尖尖的顶（“铅笔型”）
The hatched pointed huts streamed away towards the forest.
尖顶茅屋逶迤漫延，直至森林边缘。
When I got to the top I just flaked out
我爬上顶层后简直累瘫了。
not merely overweight but downright fat.
不仅是超重，简直是肥胖透顶。
He sometimes mounted thus even to the roof of the galley prison.
有时，他还用那种方法直上监狱的房顶。
There was a helicopter hovering overhead.
有一架直升飞机在头顶上盘旋.
a mansard roof with sides that are nearly perpendicular.
屋面接近垂直的一种折线形屋顶。
planes and helicopters flying overhead,
从头顶飞过的飞机和直升机，