创办会员

At present, it has formed a comparatively complete system and its business scopes cover twelve fields: holding international professional exhibitions, international entertainment technology summits, and information and technology exchange and business forum, publishing professional magazines, setting up CETA website, establishing technical standards of the industry, evaluating the technical grades of theatrical equipment enterprises, technical training, providing consultation concerning feasibility of cultural facilities, evaluating and popularizing high quality products, organizing regional activities of member institutions, management of member institutions.

这12个方面的工作、活动是：举办国际专业展览会、国际科技论坛、全国演艺设备技术信息交流、贸易洽谈会，创办专业科技杂志，开辟协会网站，制定行业技术标准，开展工程企业综合技术能力等级评定、技术培训工作、文化设施技术咨询服务、优质产品评定和推广、会员地区组活动以及会员管理工作。

"People are just getting disappointed with public schools,"said Gilbert Wilkerson,a home-scooling father of four children and founder of the Virginia-baset Net-work of Black Home-schoolers,which has about 300 members in the US.

Gilbert Wilkerson说："人们只是对公立学校越来越失望"，他是一位自己在家教育4个孩子的父亲，同时在弗吉尼亚创办了一家"黑人家庭教育网络"，该机构已经在美国拥有近300个会员。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。