Mechanical seals or stuffing boxes.

机械密封件，轴承，填料箱。

youdao

The structure principle of stuffing-boxes of the AG-scrubber is presented. The causes of leakage of oil, water and gas are analyzed and the solving methods are raised.

介绍了环缝洗涤塔填料密封箱的构造原理，分析了渗漏油、水、煤气的原因及解决的办法。

youdao

She assisted in the packing of her portmanteaus, and hopelessly bewildered her maid by stuffing silk dresses into her bonnet boxes, and satin shoes into her dressing-case.

她帮助收拾行李，把丝衣裳塞在帽匣里，把缎鞋放在化妆匣里，搞得侍女绝望地手足失措。

youdao

Campaign committees for a number of presidential candidates have accused others of stuffing ballot boxes or throwing out votes.

VOA: standard.2009.09.08

Shoe boxes were toppled, boots and their stuffing were strewn around, and young girls crowded around dressing rooms.

WSJ: Macy's Black Friday Plan: Boots, Bieber