A word to our readers--on china's open-door policy--expanding economic and technical exchanges--China's foreign trade in the past five years--reforming the foreign trade structure--policies for coastal cities--absorption of direct investment from foreign countries--an important form in absorption of foreign investment--investment environment seen as favourable--investment protection: key to open policy--developing trade with the third world--economic and technical aid to foreign countries--construction contracting and labour co-operation abroad--technical co-operation with the United Nations--patent law encourages Chinese and foreign inventors--legislation firmly holds open China's doorsjoint ventures in China--scientific and technological co-operation