To foreknow crossleakage, causing performance deterioration of a fuel cell during the operation of the fuel cell. 燃料電池の運転中に、燃料電池の性能劣化を引き起こすクロスリークを予見する。 - 特許庁
Iron wires are drawn on a road surface and a floor face, and magnets are attached to the tip of a cane to foreknow a direction by the attractive force. 路面、床面に鉄線を引き、ツエの先端に磁石を付けて、その引力で方向を予知するためのツエ。 - 特許庁