As a new non-contacting, no-leaking face seal, in the past few years, the spiral groove seal has been used widely in many fields, such as the aviation-aerospace and the petrochemical industry.
作为一种非接触式并且能达到“零泄露”的新型密封型式，螺旋槽密封在航天航空和石油化工等领域的应用越来越广泛。
In the design of balanced seal, the barrel type seal has adopted a new-type material of wear resistant corundum to enable no failure for many years.
在平衡密封设计中，筒式釉封采用了新型耐磨金刚砂材料，具有常年无故障性能。
He says: that is no good, that makes head office new approve even, new affix one's seal.
他说：那不行，那还要让总公司重新批，重新盖章。
SAFE shall no longer require the applicant on the spot fill out its name in or affix its name seal to paper-made new version Verification Certificate.
外汇局不再要求企业领单时当场在纸质新版核销单上填写单位名称或加盖单位名称章。
SAFE shall no longer require the applicant on the spot fill out its name in or affix its name seal to paper-made new version Verification Certificate.
外汇局不再要求企业领单时当场在纸质新版核销单上填写单位名称或加盖单位名称章。
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