For example high noise, use of radiation source, potential drop objects etc.

例如噪音、放射源的使用、可能坠落的物体等。

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Years ago, to 'hedge' against a potential drop in prices, a number of gold-mining companies agreed to sell much of their future production.

多年前，为了“对冲”金价下跌的可能性，众多金矿公司同意预售大量未来将开采的黄金。

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The results showed that the activation of sodium sulfide to the smithsonite due to the HS- ion adsorbed on the smithsonite's surface and lead to the zeta potential drop.

结果表明，硫化钠对菱锌矿的活化作用主要通过HS-吸附在菱锌矿表面，降低菱锌矿表面电位实现；

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But this premium is at risk due to a potential drop off in customer growth.

FORBES: Schwab Needs Account Growth To Push Stock Above $20

TesoroLogistics is well positioned on the growth curve with a very strong year over year profit increase forecasted, as well as a healthy yield and expected earnings-accretive contribution from potential drop-down opportunities.

FORBES: Tesoro Logistics Jumps 30% Since June, Still Yields 4.2%

Another potential drop-off is Japan's Katsumi Tada.

FORBES: Bye, Bye Billions