Rowland ring
[化] 罗兰环
🧩 词语组成解析
n. 罗兰（男子名）
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
I'll go down to Henry's grocery. He's always open.
我到亨利杂货店去。那里总是开门营业的
Look before you leap. First think, then act.
三思而后行。
So he had gone to the stores and had obtained a fixture that fitted both the tap on the supply line and the end of the air-line.
所以他就到仓库找到一个既适合供应管也适合供气管的接头。