Wang Libo, a fourth class noncommissioned officer in an ammunition maintenance and test station, was an expert in various missiles' ground equipment repair and maintenance.

Wang Libo came to the missile examination and repair office of the station several years ago. From then on, he devoted himself to missile's examination and repair.　In order to be an expert in this field in a possible shorter time, he self-studied all the college courses for a missile technician within only one year. He took notes totaling 100,000 Chinese characters.

The personnel taking missile maintenance and repair work were mostly officers and noncommissioned　officers graduated from military institutes. The first time Wang Libo opened the training simulator of a certain model of missile, he felt dizzy at all those wires and welding joints. He then started to further his study from the circuits principles of the familiar equipment and tackled the problems in the structure and circuit principles of every equipment.　After years of efforts, he mastered all the circuit principles of many kinds of equipment, such as, a certain type of anti-tank missile and a certain type of　surface-to-air missile, etc..　After one-year's practice, Wang Libo's missile maintenance skill had already reached to the same level of a maintenance technician. He went to different units to do the maintenance work as a leading technician. The number of missile equipment he repaired totaled 5 kinds and 132 sets and he solved more than 20 problems for the troops within the military area command. September last year, he was certificated by the headquarters as the only noncommissioned officer in the army who could do the missile equipment maintenance work.

Wang paid more attention to research after he became successful in missile maintenance. During the days he went to the troops to repair equipment, he found there was a high fault rate in one missile tester, and its repair work was so complex that it cannot be done without enough instruments, let alone under the field condition. He then planned to invent an integrated device specially for this kind of missile ground equipment. He got support from the director of his office. Thus, a research group was established in the station. As a member of this group, Wang Libo took charge of data design and programming.　After two-year's efforts, the project "A Technical Maintenance Tester for a Certain Type of Missile" was accomplished successfully and passed the appraisal of an experts team. This tester got the third prize in the Military Scientific and Technological Progress Award.

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