itty-bitty - J日記

itty-bitty: adj. very little, tiny

Itty-Bitty and Shrinking, Fusion Device Has Big Ideas By KENNETH CHANG
In a surprising feat of miniaturization, scientists are reporting today that they have produced nuclear fusion - the same process that powers the sun - in a footlong cylinder just five inches in diameter. And they say they will soon be able to make the device even smaller