The technician wanted to keep an auxiliary engine handy just in case.
技师想要一台备用发动机以防万一。
The results can be used by engine designer and technician as reference in their new engine development and production.
这一成果可供航空发动机设计人员和工艺人员在新机研制和生产中借鉴。
The results can be used by engine designer and technician as reference in their new engine development and production.
这一成果可供航空发动机设计人员和工艺人员在新机研制和生产中借鉴。
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