筒接
- 與 筒接 相關(guān)的網(wǎng)絡(luò)例句 [注：此內(nèi)容來(lái)源于網(wǎng)絡(luò)国产18流白浆视频，僅供參考]
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An automatic arc welding machine for saddle joint seam of big-diameter cylinders was designd and its structure, components, charicteristic and working principle are discribed in this paper.
介紹了大直徑筒體馬鞍形接縫的自動(dòng)焊機(jī)的結(jié)構(gòu)www自拍偷拍、組成和工作原理国产精品无码专区在线观看，以及設(shè)計(jì)的主要特點(diǎn)。
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An automatic arc welding machine for saddle joint seam on large diameter cylinders was designed and its structure,components,characteristic and working principle were discribed in this paper.
介紹了大直徑筒體馬鞍形接縫自動(dòng)焊機(jī)的結(jié)構(gòu)和工作原理欧美福利专区，以及設(shè)計(jì)的主要特點(diǎn)AV国不卡wwww。推導(dǎo)出了該系統(tǒng)用來(lái)控制氣體保護(hù)電弧焊焊槍運(yùn)動(dòng)軌跡的關(guān)鍵部件──凸輪的形狀與尺寸的計(jì)算公式：l =l′-Z′=l′- [(R2 -r2 cos2 ψ) 1/ 2 -rsinψcosα]/sinα。
- 推薦網(wǎng)絡(luò)例句
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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.
47：5 法老對(duì)約瑟說(shuō)人妻日韩综合诱惑色，你父親和你弟兄們到你這里來(lái)了色播播网免费播播。
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Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.
提出了用測(cè)地線方程、曲面上兩點(diǎn)間短程線來(lái)計(jì)算膜結(jié)構(gòu)曲面測(cè)地線的方法日日色色色，同時(shí)A片强奸少妇毛片按摩，采用測(cè)地線間垂線的中點(diǎn)連線和用無(wú)約束極值法進(jìn)行空間條狀曲面近似展開(kāi)的分析。
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Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...
嘿大烏鴉影音先锋在线观看中文字幕2019，個(gè)別謊言的事不要再-其所有的組織的謊言日韩黄色网站网址大全，在支持。