A method and apparatus for transmitting emergency messages is disclosed. The resulting temperature compensation circuit output voltage Vctrl\u2032 is applied to a collector terminal of a bipolar transistor 110 through a voltage regulator 140 and a choke inductor 170. When the claw of the claw structure imparts pressure on the rectangular-shaped hollow structure, the strain gauge distorts, following the curve of the rectangular-shaped hollow structure, to produce corresponding pointing signals. A nonwoven fabric 8 is formed by laminating crosswise a longitudinal web and a lateral web via their bonding layers so that orientation axes of the webs cross perpendicularly to each other. The pulse-driven fuel pump 13 is provided with a fuel suction pipe 25 connected to the fuel outlet pipe 28 of the vacuum fuel cut valve 12. Supplying oil from one of the plurality of compressors includes supplying oil from the one of the plurality of compressors having an opening in its housing.