For this reason, any large, flat areas should be crowned convex to prevent dishing in the reverse direction.(同樣原因，較大的平坦表面應稍拱起以避免在相反方向凹下。)

You will then be making circles around the other car, but when seeing from above, both of you are driving forward all the time and your path will be convex.(然后你將會一直繞另一輛車轉，但當你從上面看，你們兩個一直在向前行駛且你們的路徑是凸形的。)

The moon was above us, a convex shape almost crushing us, a ruined roof, studded with holes like a cheese grater.(月亮就在我們上方，凸面對著我們仿佛要把我們擠壓粉碎，像一個荒廢的屋頂，滿目瘡痍像一個干酪粉碎機。)

Linear programs with several reverse convex constraints are discussed.(討論帶有多個反凸約束的線性規劃。)

The core is a set which satisfies a system of weak linear inequalities, so it is closed and convex.(中心是一個滿足弱線性不等式的合集，因此它是封閉的、凸的。)

A small curve in the sliding part of the convex top of the lower nut acts as the wedge.(下螺母凸頂的滑動零件上有一條小弧線充當楔塊。)

Back after excessive convex problems to solve.(解決上背部過度后凸的問題。)

Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.(水從葉子內部的細胞涌向外面的細胞，導致葉子迅速地從凸向凹翻轉，就像一片柔軟的隱形眼鏡。)

This is a convex mirror.(這是面凸面鏡。)

Just as a double convex lens enlarges so a double concave lens reduces.(正象雙凸透鏡可以放大那樣，雙凹透鏡也可以縮小。)

This huge convex of Fire..immures us round Ninefold.