| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the primary factor in cost increase without marring fine view and also without taking time in work execution. SOLUTION: An exhaust cylinder 1 is composed of a rectangularly parallelepipedic agitation box 11 which has an opening 11 in its front, a rear pipe 12 which is joined with the rear of this agitation box 11 and leads to the interior of this agitation box 11, and a lower pipe 13 which is joined with the downside orthogonal to the above rear of the agitation box 11 and leads to the interior of the agitation box 11. A sensor part 2 is composed of a gas sensor S, a sensor plate 21, a sensor plate packing 22, a sensor box 23, a sensor packing 24, a temperature sensor holder 25, a temperature sensor packing 26, and a sensor cover 27, and it is attached to the exhaust cylinder 1.
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