| 摘要 |
PROBLEM TO BE SOLVED: To perform a hail impact test by a simple apparatus and procedures at a stable speed with reduced wastes. SOLUTION: The hail impact testing apparatus in which an ice ball is launched from a launcher tube through gas pressure is characterized in that it has an on-off valve and a gas introducing pipe which is connected to the launcher tube and of which the inner diameter is smaller than that of the launcher tube. COPYRIGHT: (C)2006,JPO&NCIPI
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