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    Apr 15, 2019 · C 4 F 7 N (fluorinated nitrile) gas mixture has been utilized as the gas insulating medium to replace the most greenhouse gas SF 6 (sulphur hexafluoride). Nowadays, there are few reports on the toxicity mechanism of C 4 F 7 N and studies on the application risk of C 4 F 7 N is insufficient.

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    Feb 01, 2016 · The contrast agent (phospholipid microencapsulation of sulfur hexafluoride) was injected in the auricular vein with the dose of 0.15 mL/kg, which was then washed with 1.5 mL 0.9% NaCl. The signaling process of blood flow was observed under the real-time and dynamic gray status and the dynamic contrast images were saved.

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