Listing 4 demonstrates how to manage an asset life cycle with an external trigger.

清单4说明如何用一个外部触发器来管理一个资产生命周期。

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Trigger sources include manual (front panel button), IEEE-488 bus, trigger Link, internal timer, and external trigger.

触发源包括手动(从面板按钮)、IEEE - 488总线、Trigger Link接口、内部时钟和外部触发。

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It also discusses some key techniques such as the design of ECL circuit, high speed signal processing and external trigger control.

并对ECL电路、高速信号及外部触发控制等关键技术进行了详细的讨论。

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But external criticism can trigger a boost as people try to prove the outsiders wrong, it said.

BBC: Dart throwing while blind, no concerns there

As for the corporate sector, the Central Bank of Russia has said that the deleveraging of 2009-10 has made Russia companies more resilient to external shocks that trigger higher foreign borrowing costs.

FORBES: As EU Crisis Unfolds, Russia Bracing For The Worst

External events, too, could prove a trigger.

ECONOMIST: Japan's banks