planeness

基本解釋

According to different craft stages under bituminous pavement construction, discusses the important point of controlling the planeness of bituminous pavement.
根據(jù)瀝青砼路面施工中不同工藝階段，論述了瀝青砼路面平整度的控制要點(diǎn)。
The article discusses how to improve the planeness of pavement mainly from subgrade, pavement subbase and the mixing, spreading and rolling of asphalt mixing material.
主要從路基、路面基層、瀝青混合料的拌合、攤鋪、碾壓等幾個(gè)方面對(duì)如何有效提高平整度的施工方法進(jìn)行了探討。
A solar panel substrate planeness non contact system is presented, which employs optical triangulation method and bases on virtual precise benchmark.
介紹了一種采用斜光學(xué)三角形測量結(jié)構(gòu)和基于虛擬精密測量基準(zhǔn)的太陽帆板平面度無接觸測量系統(tǒng)。

平面度
So high precision of the mechanical cutting of each segment end face was required. For example,it was specified that planeness≤0.25mm,roughness≤12.5μm,inclination error between the axes and end face≤20"(1/10000).
鋼塔節(jié)段端面機(jī)械切削加工及精度管理南京長江三橋每個(gè)鋼塔柱共有22個(gè)節(jié)段,節(jié)段間采用“端面金屬接觸+摩擦型高強(qiáng)度螺栓”連接傳力,這就要求每個(gè)節(jié)段有很高的端面機(jī)械切削加工精度,如:端面平面度≤0.25mm,粗糙度≤12.5μm,節(jié)段軸線與端面直角度≤20″(1/10000)。
物理學(xué)
平度