从中而来的利润也可能会再次投入到建筑行业。 如此的平缓收益不足以弥补金融或商业的不稳定性。
At the margin, the property cycles might lead to the construction of better buildings, but such modest benefits are outweighed by the accompanying financial and economic instability.
不过，风能的获取是不稳定的——有时风力提供的电力会过多，有时则会不足。
But wind power is uncertain, sometimes providing too much electricity and sometimes too little.
当过程变得不稳定或统计能力不足时，应采取规定的反应计划。
It shall initiate the specified reaction plan when the process becomes unstable or not statistically capable.
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