The fluid surface forcing control system applied on counter pressure casting is built based on the combined digital valve as the main flow control component.

采用组合式数字阀作为主要流量控制元件，构建差压铸造液面加压控制系统。

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The FAA on Sunday began furloughing its air-traffic controllers for one day every 10 work days to meet its required cuts under the sequester, forcing some understaffed control towers to hold aircraft at airports or increase space between airborne planes.

WSJ: Senators Seek Way to Ease FAA Cuts

Occasionally, the sheer abundance of job applications some clients send can spin out of control, forcing the services to cut them off.

WSJ: The Unemployed Worker's New Friend: Outsourcers

This eye-opening report from Boeing scarily documents examples of laptops interrupting autopilot control, forcing aircraft to make turns and other portentous behavior.

ENGADGET: Editorial: Devices on planes -- either enforce the rules or change them