| 摘要 |
PROBLEM TO BE SOLVED: To positively determine the cause of bursting of a glass bulb. SOLUTION: This sprinkler head is provided with the glass bulb 15 filled with liquid, and an arm 7 for supporting the glass bulb 15. The liquid is an irreversible temperature sensing color-changing liquid TR changed in color when reaching a designed color change temperature. The arm 7 is provided with a liquid scatter sticking part 7a. COPYRIGHT: (C)2006,JPO&NCIPI
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