Spacer ring
[化] 定位环; 间隔环; 间隔圈
🧩 词语组成解析
n. 空格杆, 逆电流器, 定位格架\\n[化] 间隔区; 垫片; 定距片; 间距短管
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
Who is it?
是谁?
He was lucky to have a good home in which to grow up.
他幸运地生长在良好的家庭里。
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。