At last, the summing-up of the thesis is presentment, the prospect of pneumatic conveying air control especially adjustable laval nozzle for the future is put forward.
最后,对本文的研究工作进行了总结陈述,对气力输送今后在气量控制尤其是可调式LAVAL管智能控制方面的研究提出了展望。
参考来源 - 气力输送气量控制与可调式LAVAL管研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The system can also track in parallel with other systems, such as drones and air control units.
该系统还可以与其他系统同时跟踪，诸如无人机和航空控制系统。
The prince is a member of a group called Joint Tactical air control, or JTAC. He holds the rank of cornet — equivalent to a second lieutenant — and serves as a forward air controller.
王子是JTAC(联合目标攻击控制员)中的一名成员。他拥有军衔-相当于少尉-前进空中控制员。
Analysts fear the overstretched air traffic control system could reach breaking point.
分析家们担心超出承受能力的空中交通控制系统会接近爆点。
"That will not have any appreciable or noticeable impact on the air traffic control infrastructure in the foreseeable future today.
VOA: special.2011.07.11
The Centers for Disease Control says HEPA filters are effective in clearing the air of many particles that cause disease.
VOA: special.2009.07.14
And,the air traffic control tower suggests a minaret that can be found on a mosque.
VOA: special.2011.04.01
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