melt into thin air 不知去向
Subarea protection puts overall subarea and thin melt subarea into practice mainly in ancient city area, the subarea having a pertinency controls formation.
分区保护主要在古城区实施整体分区与细化分区,形成具有针对性的分区控制。
The uniformity of thin melt-blown webs which is produced of low melting point copolyamide by melt blowing line with accessory device was tested by weight method.
采用称重法对在添加了辅助装置的熔喷设备上制得的以低熔点共聚酰胺为原料的热熔纤网的均匀性进行了测试。
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