Naval architects and naval engineers gain advanced knowledge of this field in order to design and operate naval vessels with maximum efficiency and safety.
为了设计和操作效能和安全系数都极高的船舰，造船设计师和工程师们必须掌握此领域的先进知识。
2
Engineers say they are certain the smart grid will immediately increase energy efficiency and reduce consumer's bills, even before consumers are fully adept at using their new devices.
Thus, improving the effectivity and efficiency of testing and reducing the software developing cost becomes one of the urgent tasks for software engineers.