大家都搜：
工业用电频率
商用频率
1、commercial shipping───通商航运；通商航行
2、commercial operation───[经] 商业经营
3、commercial───n.商业广告；adj.商业的；营利的；靠广告收入的
4、commercial advantage───商业优势
5、commercial transaction───买卖，交易；商业行为
6、frequency range───频带; 频段；[电子][通信]频率范围
7、commercial break───（广播、电视中插播的）商业广告；n.（插播）广告时间
8、frequency generator───[计]频率发生器
9、frequency───n.频率；频繁
1、Probable reasons for frequency differences of different speech acts in commercial advertising slogans are also explored.───断言言语行为和承诺言语行为相关的商业广告标题语较其他标题语出现的频率更高。
2、Test methods for commercial frequency track circuit type automatic train stop───工频轨道线路式列车自动停车装置的试验方法
3、How to lengthen the service life of commercial frequency cored induction furnace───如何提高工频有芯感应炉的使用寿命
4、frequency and intensity of urban heat island in commercial landscape, industrial landscape, residential landscape and forest landscape were studied through fixed point measurements.───通过定点观测的方法对商业区、工业区、社区和森林公园的热岛发生频率及其强度进行了研究。
5、An optimization model for the body-in-white (BIW) of a commercial vehicle cab is set up with natural frequency as constraint and minimizing the volume of welding spots as the objective.───为某一商用车驾驶室白车身建立了以固有频率为约束条件，焊点体积最小化为目标的优化模型。
1、You can change it into a dead room by adding foam, packing blankets, or commercial frequency absorbers.