mechanical seal短语⁹⁰⁸⁸⁷⁺⁷ 基本例句 机械密封 And the unit to deal with the unstable mechanical seal in changing condition, the change-resisting mechanical seal is developed, which is applied to industry successfully. 其相应的软件系统应该具有一定的数据储存和处理能力，装置能够模拟机械密封变工况工作，通过实验装置实验的抗变机械密封成功应用于工业企业。 cnki