The article analyses air source heat pump project effect in east Nanjing depot of Shanghai railway bureau and discusses the application prospects of air source heat pump in railway company.
文章分析了上海铁路局南京东车辆段空气源热泵系统项目所取得的实效，并论述空气源热泵系统在铁路企业中应用前景。
Now that Phase 1 testing is complete, the B-1 aircraft will go to Tinker Air Force Base, Okla. , for programmed depot maintenance.
第一阶段测试完成后，B-1轰炸机将前往俄克拉荷马州廷克空军基地，进行项目基地级维修。
Now that Phase 1 testing is complete, the B-1 aircraft will go to Tinker Air Force Base, Okla. , for programmed depot maintenance.
第一阶段测试完成后，B-1轰炸机将前往俄克拉荷马州廷克空军基地，进行项目基地级维修。
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