Greenhouse engineering technical personnel have done much probe about cooling greenhouse in summer, put forward many effective methods of cooling.
国内外温室工程技术人员在夏季温室降温方面作了许多富有成效的探索，提出了许多有效的降温方法。
Engineering cost personnel is necessary engineering technical personnel in all walks of life. The effect of engineering cost influenced by the quality of cost personnel.
工程造价人员是我国建设行业中必备的工程技术人员，工程造价工作的效果直接受造价人员的素质影响。
Although many recommendations and improved schemes have been presented by the researchers and the engineering technical personnel, few of them have been put into practice.
虽然有许多科研、工程技术人员提出了一些建议和改进方案，但付诸实践的并不多见。
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