1. 堵塞的：plug gap 火花塞(电极)间隙 | plugged 堵塞的 | plugged filter堵塞的滤清器

2. 堵塞：空瓶 empty | 堵塞 plugged | 溢出 overflowed

3. 堵住的：pluggage 塞规 | plugged 堵住的 | pluggedbacktotaldepth 回堵后水泥面深度

4. 塞紧的：plug up 塞紧 | plugged 塞紧的 | plugging machine 塞瓶机

adj

1. completely obstructed or closed off

e.g. the storm was responsible for many blocked roads and bridges
the drain was plugged

Synonym: blocked

2. (of a coin) altered by the insertion of a plug of base metal