Perforated pipe
[化] 多孔管
🧩 词语组成解析
v. 穿孔于, 在…上打眼( perforate的过去式和过去分词 ); （在纸张等上）打齿孔[孔眼线]
pipe
[paɪp]
n. 管子;烟斗;管乐器;（管风琴的）音管;
vt. 以管输送;用管乐器演奏;尖声唱;
vi. 吹奏管乐器;尖叫;尖声地说（或唱），尖声啼鸣;[航海] 吹长哨;
🗣️ 情景例句
She says Carter Boswell is on the TV right now--
她说Carter Boswell现在正在电视上呢
He lives in a luxurious residence.
他住在一间豪华的寓所里。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。