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....
巨体舌鱼属一种大型南美淡水食用鱼 ( 巨骨舌鱼 ) 一般长达3米 ( 10英尺 )A large South American freshwater food fish ( Arapaima gigas ) that typically attains a length of 3 meters ( 10 feet )....
Effective communicators are also capable of observing and interpreting nonverbal communications.有效的沟通者也要有观察和解释非语言沟通信息的能力.Abstract: The aero inner communicators are main equipments of airplanes.摘要: ××系列机内通话器是装备我国××系列飞机的主要...