There are no tricks, a trolley has an accumulator and a motor.

这不是什么把戏，在这推车装有一个蓄电池和一个发动机。

youdao

And the accumulator is a passive system that just operates automatically based on a significant loss of pressure in the primary system.

蓄电池是一个被动的系统，只会在主系统出现了重大的，压力损失的情况下才会自动运行。

youdao

Whatever exposure they had with the accumulator client they could hedge away with other derivatives, all but locking in a profit.

在他们与客户的赌约中，任何风险敞口都可以被其他衍生品对冲，这样一来利润便被锁定。

youdao

As a central bank buys dollars with its own currency, the reserve accumulator (the emerging central bank) is not spending that local currency but has a claim on the US in the future (in the form of Treasuries which it buys with the dollars).

FORBES: Time for Emerging Markets to Stop Buying the Dollar?

His orgone-energy accumulator, or orgone box, as it became known, resembled a wooden telephone booth lined with metal sheeting and steel wool.

NEWYORKER: Novelty Acts

"He's a natural cricketer - obviously a talented batter, he plays the short ball well, plays pace well and is an accumulator of runs, " said former Sussex keeper Moores.

BBC: Steven Davies and Mark Butcher