The volume of scheduled flights is straining the air traffic control system.

定期航班的数量使空中交通控制系统受到压力。

《柯林斯英汉双解大词典》

Control valve in an air system for setting volume and pressure.

为了保持流量和压力的空气系统的控制阀门。

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Using new dusting institutions, dusting control can be set paper size, dusting time, reduce the volume of powder and air pollution.

采用新款喷粉机构，喷粉控制可设定纸张大小、喷粉时间，减少了粉量和空气污染。

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The administration's funding authorization expires Sept. 30, and it needs more money to address the booming volume of air traffic, primarily because the air traffic control system needs safety and security upgrades.

FORBES: Magazine Article

Among the most dramatic of Bush's proposals is a fee that the Federal Aviation Administration would charge airlines to help pay for new air traffic control services, which are becoming strained by an increasing volume of air traffic.

FORBES: Magazine Article

Air traffic was growing, and the air traffic control (ATC) system couldn't handle the swelling volume.

FORBES: Magazine Article