On average it takes 40 years for the conveyor belts to complete a circuit(see diagram).

平均来说，输送带每完成一次循环需要40年。

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The circuit, with over-current protection of output transformer original side average current and side peak current, adopts pulse transformer coupling MOSFET driving circuit.

该电路采用脉冲变压器耦合MOSFET管驱动电路，具有输出变压器原边平均电流和副边峰值电流的过流保护功能。

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A average circuit mode control chip UC3854B is used to control each phase, thus the circuit and parameters are easy to design.

每个单相电路采用一片平均电流模式控制芯片uc 3854 B作为控制核心，电路简单，参数设计方便。

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Even though big-box centers across the U.S. still are struggling with vacancies lingering from the liquidation of retailers such as Borders, Circuit City and Linens N' Things, the industry's average vacancy rate has declined in recent years.

WSJ: Landlords Prefer Deals LIke Office Depot-OfficeMax to Liquidations

The index is set to replace the Dow average on April 8 as the index whose action will be monitored for the sharp swings that trigger "circuit breakers" halting all U.S. stock trading.

WSJ: S&P 500 Milestone Has More Meaning Than Dow Record for Many

On slide three, you can see that the average wait time for our judicial nominees to get a vote on the floor of the Senate, both for the circuit court and the district court is three to four times as long as it was under our predecessor.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,