High light efficency , concentrated light, no additional ballast, which can take place of incandesce lamp, reducing investment fees.特点:发光效率高,光线集中, 不需要附加镇流器, 可直接与白炽灯互换使用, 减少投资费用....
Leshka waved him away with a show of irritation.廖什克恼火地挥手让他离开。This is an irritation and inflammation of the edge of the eyelid.这是眼睑边缘红肿发炎的症状。For the first time Leonard felt irritation at her methods.伦纳德这还是头一次对她的方法感到恼怒。...
The perch is a freshwater fish.鲈鱼是淡水鱼。Coal is formed from the remains of freshwater plants.煤是由淡水植物遗骸形成的.There are bright prospects for freshwater fish farming.淡水养鱼大有可为....