cap crown which employs a new technique of extraction for lifting.

• 1. 一种防护新冠病毒的防护帽 [P] . 中国专利： CN113826976A . 2021-12-24
• 2. 一种防护新冠病毒的防护帽 [P] . 中国专利： CN111358106A . 2020-07-03
• 3. cap crown which employs a new technique of extraction for lifting. [P] . IT8921583V0 . 1989-08-04

  机译： 帽冠采用了一种新的提拔技术。

• 4. Object modeling system and process employing noise elimination and robust surface extraction techniques [P] . 美国专利： US6476803B1 . 2002-11-05

  机译： 使用噪声消除和强大的表面提取技术的对象建模系统和过程

• 5. Improvements in or relating to caps and base plates for use with pit props for supporting crown trees and arches such as are employed for colliery or mining roof supports [P] . 英国专利： GB352112A . 1931-07-09

  机译： 与用于支撑冠状树和拱门的基坑道具一起使用的盖和基板的改进或相关的改进，例如用于煤矿或采矿屋顶支架

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• 7. Isolation and Recovery of Selected Polybrominated Diphenyl Ethers from Human Serum and Sheep Serum: Coupling Reversed-Phase Solid-Phase Disk Extraction and Liquid-Liquid Extraction Techniques with a Capillary Gas Chromatographic Electron Capture Negative Ion Mass Spectrometric Determinative Technique [O] . P. R. Loconto, D. Isenga, M. OKeefe, 2008
• 8. USEPA (Environmental Protection Agency) Method Study 36 SW-846 Methods 8270/3510, GC/MS (Gas Chromatography/Mass Spectrometry) Method for Semivolatile Organics: Capillary Column Technique Separatory Funnel Liquid-Liquid Extraction [R] . Edgell, K. W. , Wesselman, R. J. 1989

• 1. Comparison of Accelerated Solvent Extraction, Soxhlet and Sonication Techniques for the Extraction of Estrogens, Androgens and Progestogens from Soils [J] . Sonya M. Havens ,Curtis J. Hedman ,Jocelyn D.C. Hemming . 农业化学和环境（英文） . 2014,第3期
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