其腹面口区具二环围口纤毛列；背面具一列背刚毛。
There are two circumoral ciliary rows on the buccal region and a dorsal row of bristles.
为了减少磨损，提高活塞环的使用寿命，对整体无背压活塞环的设计进行了研究。
The design of integral non-backpressure piston rings was studied in order to reduce wear and to raise the piston ring life.
分别对开口有背压活塞环和整体无背压活塞环的工作原理和结构作了阐述。
The work principle and structures of backpressure piston rings and integral non-backpressure piston rings were expounded.
结论用游离自体腱鞘移植重建指屈肌腱背侧腱鞘或环周腱鞘，可提高肌腱修复术在治疗肌腱伴腱周组织严重损伤中的疗效。
Conclusions Reconstruction of dorsal or circumferential sheath defects using autogenous sheath graft provides an effective way to improve results of tendon repair with severe peritendinous injuries.
其腹面口区具二环围口纤毛列及一口前纤毛列；背面具一列背刚毛；腹面纤毛列的数目可发生较大变动。
There are two circumoral ciliarvrows and a preoral ciliary row on the buccal region and a dorsal row of bristles.
光滑的皮革或柔软的磨砂鞋面与三个钩环沿背肩带和脚背上的带子。
Smooth leather or soft nubuck upper with three hook-and-loop straps along the back strap and across the instep.
领口采用尖角或环型设计，下装配有背带裤或围裙设计，背片和腋下开创覆盖式透气孔设计，亦有大褂风衣设计，总之可以根据客户需要进行设计和研制。
Normal style: exposure suit is designed with a sharp-angled or ring neckline, collocated with gallus trousers or apron, with free breath holes covering back and oxter; or dust coat.
领口采用尖角或环型设计，下装配有背带裤或围裙设计，背片和腋下开创覆盖式透气孔设计，亦有大褂风衣设计，总之可以根据客户需要进行设计和研制。
Normal style: exposure suit is designed with a sharp-angled or ring neckline, collocated with gallus trousers or apron, with free breath holes covering back and oxter; or dust coat.
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