求翻译：通过端点端密封设备与相关软件现场量化密封设备工作环境变化的正负压，气密性，防护等级。密封腔体由于工作环境变化3-12min内透气流量压力模拟负压试验曲线是什么意思？

Endpoint side sealing equipment and related software site to quantify the sealing equipment working environment changes in positive and negative pressure, air tightness, degree of protection. Sealed cavity ventilation flow pressure due to changes in the work environment-12min simulated negative pres

With an end-point end sealing equipment and related software quantitative sealing equipment work on-site changes in the environment of negative and positive pressure, tightness, levels of protection. Sealed cavity due to a work environment changes within 3 - 12 min breathable flow pressure analog ne

Through vertex end seal equipment and correlation software scene quantification seal equipment working conditions change negative pressure, gas tightness, protection rank.Because the seal housing the working conditions change in 3-12min to ventilate the current capacity pressure simulation negative

By end-side sealing devices and software field to quantify positive and negative pressure seal equipment work environment changes, airtight, protection level. Sealed cavity due to changes in the working environment within the 3-12min negative pressure air flow pressure simulation test curve

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