1·Thrust disc is made of steel and thrust bearing bushing surface is made of plastic bushing.
推力盘为钢制材料制成，推力轴承瓦面为塑料瓦材料制成。
2·The basic units of post seal structures were sorted into adhesive, rubber, lead bushing, plastic cover and lead post pillar, and each se aling unit was analyzed.
研究了把密封结构基本单元归结为胶粘剂、橡胶、铅套和塑料电池盖、极柱等，并分别做了简要分析；
3·A plurality of recesses are formed on the outer circumference of the magnet; the magnet and the bushing are integrated by one-shot plastic forming, and the bushing is of plastic.
在磁铁的外圆周面上形成多个凹槽，磁铁和衬套一次注塑成型、形成一体，衬套由塑料制成。
4·The membrane type biological reactor feature its increased hollow-fiber porous membrane assembly, which has adhesive layers at two ends and is packed on or inside plastic pipe by sealing bushing.
膜式生物反应器，特点是在生物反应器上增设中空纤维微孔膜组件。该膜组件两端设胶层，用封头衬套将其封装在塑料管上或管内。