An altitude information acquiring device includes a measuring unit which measures atmospheric pressure; a wireless communication unit which performs near field communication with an external device; and an altitude information acquiring unit which acquires altitude information from an external positioning device through the wireless communication unit. The valve body and valve bonnet have an alignment rib received in an alignment notch when the body and bonnet are joined together such that the holes that receive the attachment screws are automatically aligned with one another. Libraries formed in accordance with the invention have utility per se and are articles of commerce. A plurality of cutting blades are pivotally mounted to the plurality of pivot pins. The environmentally sensitive electronic device includes a second substrate and a pixel array. Accordingly, an intended range of a threshold voltage can be obtained by blocking the p-type impurity in the PMOS region from penetrating into a gate insulation layer.