1、专业major2、电子信息工程专业electronic and information engineering 例如：my major is electronic and information engineering3、The socket power is regularly turned off by the relay controlled by SCM in 24 hours， the socket power is powered on during the fixed period， and during other time period it is powered off， the electrical appliance is turned on and turned off At the same time， the socket has a function of overload protection， Utilizing the heat effect of themometal part， it can apperceives temperature and current to protect the the function such as regulary time， start， stop is set up through the The 220V AC is translated into 5V DC to drive SCM by transformer and rectifier module， the uninterrupted power supply of system is The relative information such as timing is displayed by liquid-crystal indicator， so that the function of energy-saving， environmental protection and provention of the accident is
“专业”的英语分为：professional意译为"职业的，专业的"。中文意译professional，意译为“职业的；专业的”，常被许多软件产品作为后缀，意即“专业版”。major意为成年人；主修科目；陆军少校，在大学期间pre-med和本科专业是两回事， 任何准备上医学院的本科生不管专业（Major）是什么都可以称自己是pre-med。area意为(学习、工作、思想、活动等的)领域，范围，方面agency意为一国政府内或联合国管辖下的) 专业行政机构(或部门)；也有代理的意思。Electronic and Information Engineering（电子信息工程专业），如果想表达大学修的专业，建议你用major；表达某一领域的专业，用area单词。
