Good power density means a shape like a peanut butter jar, easy to fill or empty; low power density is more like a wine jug with a narrow neck.

电能密度好的就像花生酱罐子口，很容易装满或倒空；电能密度差的就像窄瓶口的酒壶。

youdao

Piani was taking the wooden cork out of a big wicker-covered wine jug.

皮安尼把一个大酒瓮的木塞子拨了出来，酒瓮外用柳条包好。

youdao

He placed the wine cup and jug beside the bed.

他把酒杯和水壶放在床边。

youdao

Grenache still, to many Americans, has a hint of pinkish jug wine about it, and only a few brave souls on the West Coast, like Bonny Doon, Alban, Edmunds St.

FORBES: Grape Juice

Just as Jackson has his beefs with jug wine, which has failed to give U.S. wine a good name, so he quarrels with the conceits of the boutique vintners who shrink from scale.

FORBES: Harvest Time

Eyes half closed, I reached out for a jug of wine cradled in the roots of the tree and dreamed... dreamed of a row of mole hills, beneath each of which lay 400 litres of wine.

BBC: A dream of Georgian vineyards