什么是先导性行业

先导性行业是指在国民经济体系中具有重要的战略地位，并在国民经济规划中先行发展以引导其他产业往某一战略目标方向发展的产业或产业群。
先导行业就是那些需求价格弹性和收入弹性很高，可以带动其它产业发展的产业。它们对国民经济未来发展起方向性的引导作用，代表着技术发展和产业结构演进的方向。先导产业对于国民经济发展具有全局性和长远性作用，自然成为国家重要的战略产业。

房地产业、汽车业、家电行业、传媒业、和新能源等都是先导性行业。

不就是性行业啊

The telecommunication operation profession is the fund is crowded addsthe technology-intensive profession, has the construction scale andthe development speed moderate in advance characteristic. Thisprofession is the national economy foundation profession, thestrategic profession and the forerunner profession, holds theimportant status in the national economy. The telecommunicationoperation profession more and more appears to the national economypromoter action to in the contribution which grows to the economy,this kind of contribution including is direct and the indirect twoaspects. The direct contribution generally the value total amountwhich creates for the country and the society is the telecommunicationindustry increases the value w