The technological status and development of flexible rubber pipes and bellows about the theoretical studies, designing requirements and tests are introduced in this paper.
系统论述了国内、外挠性橡胶软管和球形管在理论研究、设计要求和检验评估方面的技术现状和研究进展。
The studies provide further theoretical bases and technological guide for improvement of quality of the potting seedlings and popularization of potting seedlings.
研究结果为提高穴盘育苗秧苗素质，推动穴盘育苗技术普及应用提供理论依据和技术支持。
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