大量静电荷可能在床内积聚而引起火花放电。

Large static charges may build up in the bed causing spark discharges.

装卸油品码头在装卸油品过程中会产生静电荷；

Static charge could be produced during the process of oil products handling in discharging quay.

超级电容器似乎能够兼备速度和耐久性这两个优势，这是因为和电池类似，在构造上它采的是用离子和电解液而不是简单依靠静电荷。

The reason ultracapacitors may be able to bridge the gap between speed and endurance is that, like batteries, they use ions and an electrolyte rather than simply relying on the static charges.