青年中文concave bottom的意思
concave bottom中文翻譯：
凹面底部
concave───adj.凹的，凹面的；n.凹面；v.使變凹形
bottom───n.(Bottom)人名；(英)博頓；vi.到達底部；建立基礎；vt.裝底；測量深淺；查明真相；adj.底部的；n.底部；末端；臀部；盡頭
concave function───[數]凹函數
concave shape───[醫]凹形
concave polygon───n.[數]凹多邊形；n.凹多邊形
concave mirror───n.凹透鏡; 凹鏡
concavo-concave───adj.兩面凹的
concave upward───凹向上的；凹向上；[醫]凹面向上
at bottom───實際上（等于atthebottom）；adv.實際上; 說到底; 骨子里
adhesive dike slot (31) is formed around the joint concave bottom, thus preventing the main body and the neck back side from dirtiness caused by excessive adhesive overflow.───粘合劑堤槽(31)形成在接合凹底部的周邊，以防止用粘合劑連接時過量粘合劑溢出弄臟主體及琴頸的背面。
On seismic profile cross-cut the channel, it generally presents as a lenticle with flat top and concave bottom and has the character of infilling in reflection.───在橫切河道的地震剖面上一般表現為充填反射狀的頂平底凹的單透鏡體；
The concave bottom mill shoe is used to grind downhole small objects and other unstable fallen objects.───凹底磨鞋可用于磨削井下小件落物以及其它不穩定落物。