1. 充填器：plug-finishing bur 充填磨光钻 | plugger 充填器 | plugging forceps 填塞钳

2. 凿岩机：plug drilling 冲讳岩 | plugger 凿岩机 | plumb bob 铅锥

3. 填塞物：plugboard 插接板 | plugger 填塞物 | plum blossom 梅花

4. 填塞器：plugged program computer 插入程序计算机 | plugger 填塞器 | plugging chisel 刀形凿

noun

1. someone who is an active supporter and advocate

Synonym: promoterbooster