于是资源与种群增长构成一个反馈调节环。
Therefore, the resources and population increase form a feedback loop.
它主要由内筒、外筒、带有单向阀的活塞、溢流件、调节环，密封圈等组成。
The leakproof hydraulic damper is mainly composed of an inner cylinder, an outer cylinder, a piston which is provided with one-way valves, overflow members, adjustment rings, seal rings, etc.
制织这种织物的织机必须装有经纱长度补偿装置。本文阐述了使用经纱张力调节环来补偿经纱的长度。
On this triaxial weaving machine, which is capable of producing triaxial fabric, warp, length compensator must be mounted.
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