butt contact

基本解釋

Butt contact and angular contact welding seam corrosion detection sensors were designed respectively.
分別設(shè)計(jì)了適合對(duì)接和角接焊縫腐蝕檢測(cè)的兩種傳感器。
A line-type contact between the butt ( 18 ) and the guide track ( 7 ) is achieved, which reduces wear.
得到了針踵（18）和導(dǎo)軌（7）之間的線- 型接觸，其減少磨損。
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End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
端面有間隙、帶凸臺(tái)對(duì)接外形是指在標(biāo)準(zhǔn)節(jié)上部主弦桿上焊有定位凸臺(tái)，定位凸臺(tái)伸人另一標(biāo)準(zhǔn)節(jié)主弦桿內(nèi)，上、下套管之間留有一定間隙配合定位。

First I go over the physical posture you should have because when you're sitting like we usually sit on the round cushion or the floor, re free of contact with people usually both your knees and your butt are for the kneeling.
首先理順應(yīng)有的身體姿勢(shì),因?yàn)榇蜃鴷r(shí),像我們常會(huì)坐在圓坐墊,或地板上，你要確定自己身旁不要有人，you，make，sure，you‘,通常兩膝和臀部都要注意,都要碰到地面。
普林斯頓公開(kāi)課 - 人性課程節(jié)選