Because selling of the home air conditioner trade has the obvious seasonal characteristic, its distributor management presents periodic return.

由于家用空调行业销售具有明显季节性特点，其经销商管理呈现周期性循环的特点。

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One strategy to ensure that users return to the site at periodic intervals is to offer them fresh information from time to time.

确保用户隔一段时间就回到网站的一个策略就是不断地向他们提供新信息。

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SRL (structural return loss) is one of the important indicators of telecom cables, while the capacitance in water of cable may reflect the periodic defect of the production line.

结构回波损耗是通信电缆的重要指标之一，而电缆绝缘线芯的水电容可综合反映生产线上的周期性缺陷。

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For example, large cap stocks have historically returned about 9% per annum in the U.S., but due to the new market realities, of slow growth, heightened volatility, punctuated by periodic financial crisis, an annual return estimate of 6% to 8% for a large cap stock portfolio might be more realistic.

FORBES: Investors Need To Make Money, Not Beat Benchmarks

Even though protection under either the public or private system is not 100% certain, at least beneficiaries in the private system received periodic reports on their funds and had the ability to seek the best return.

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