一类商品 meaning in English

first category of commodities

Wth the coming of highly advanced post - industrial hme , the time of digital era , the traditional silver salt photo tecimology is obsolescent and digital photography is taking the lead in the domain of commercial photography
商业人像的拍摄是在传统的人像摄影的技法上加入了更多的设计语言，一人物的造型服务于所表现的商品，而这一类商品又与人的生活息息相关的。
The normal filter material using in the polyester melt , which presssing deformation when melt pressure is high that bringing easily the differential pressure of the melt filter is very high soon , as well as the filter candle can ' t reuse . after using the new kind of the filter material stcl4 instead of the normal and modifying the structure of the filter , the differential pressure come down very deeply . the high differential pressure problem of the melt transport in the directly spinning is successful solved
五花八门的商品是很难用同一的技术和方法来处理的,每一类商品都有其特点,要拍摄好,必须仔细研究商品的外形、质地及用途,根据广告的创意要求,确定好拍摄器材,给出最佳的布光和构图,并在拍摄过程中进行严格的技术控制,才能取得完美的效果