Since China did not have a manufacturer of PHS base station antenna, Chinese telecom operators had to import a large amount of expensive base station antenna from abroad.

• 因为他了解到,时值中国大力发展移动电话小灵通(PHS)业务,可由于市场垄断,国内小灵通(PHS)基站当时使用的都是价格高昂的进口天线。