五、請將下列英文譯成中文。（20 分） The heat produced by running machinery, must be removed to ensure the satisfactory functioning of the equipment. Cooling is achieved primarily through circulation of water, oil and air, but the abundant supply of sea water is normally reserved for use as an indirect coolant, because the dissolved salts have a great potential for depositing scale and assistant in the setting up of galvanic corrosion cells. Pollution of coastal area by industrial and other wastes has added to the problems of using sea water as a coolant.