Steel chisel grassland, pitch surface ground or other soft ground.

使用钢钎在草地，沥青地或其它松软场地上固定篷房。

youdao

In this paper we propose a method of projective transformation from pitch surface to cutter surface for studying face mill cutters.

文中借助于形象思维把齿轮的啮合几何化，提出了一种研究按滚切法工作的切齿刀具的方法，从节曲面到齿曲面的射影变换。

youdao

It could optimize the road surface and succeed in design of pitch surface of non-line optimization design. It has the character of saving time and making it accurate.

利用遗传算法对路面结构进行优化，可成功求解沥青路面结构非线性优化设计模型，具有节省时间、优化结果准确的特点。

youdao

Puffs of dust were evidence of the ball breaking the surface of the pitch as it landed - and batting last should be awkward.

BBC: Jonathan Agnew column

Hopefully, that game will take place on a different surface after the Wembley pitch, which was re-laid for the 10th time in three years following England's win over Egypt in last month's friendly, again proved hopelessly inadequate for a showpiece match.

BBC: Aston Villa 0-3 Chelsea

In the 20 or so years I have been playing here at my home ground in Perth, I must admit I had never seen so much grass on the surface of a Test pitch and it was therefore no surprise to hear all the talk and prediction leading into the match.

BBC: Ashes: Australia coach Justin Langer's key moments