And at colder temperatures , oil is more viscous and diffuses less quickly .
温度越低,石油就越有粘性,扩散的就越慢。
It is able to do this because it is filled with a mineral oil that slowly diffuses through the silicone . The oil serves as a lubricant for any debris that sticks to the shell .
However , since the wealth effect diffuses slowly and with considerable lags , the process is likely to play out over the next year and a half , with the tax cuts absorbing some of the impact .
When there is a salty solution on one side of a semi-permeable membrane ( such as a cell wall ) , and a less salty solution on the other , water diffuses through the membrane from the less concentrated side to the more concentrated side .