N-COUNT [oft inNOUN]直径;对径 The diameter of a round object is the length of a straight line that can be drawn across it, passing through the middle of it. 直径;对径
...a tube less than a fifth of the diameter of a human hair.
直径不足人的头发直径1/5的电子管
...a length of 22-mm diameter steel pipe.
一段直径为 22 毫米的钢管
...a tiny capsule, between 1 and 3 millimetres in diameter.
ADJECTIVE | VERB + DIAMETER | PREPOSITIONADJECTIVE➤inner, inside, internal內徑◇The tubes have an internal diameter of 2 mm.管子的內徑是 2 毫米。➤external, outer, outside外徑▸➤large, small大直徑;小直徑VERB + DIAMETER➤calculate, determine, estimate, find, measure計算/確認/估計/求得/測量直徑◇a method of calculating the diameter of the earth計算地球直徑的一種方法➤increase, reduce增加/縮短直徑▸➤have直徑有⋯PREPOSITION➤in diameter直徑為⋯◇The mirror is ten inches in diameter.鏡子的直徑是 10 英寸。