这之所以成为可能，只是因为磁盘驱动器虽然价值高，但体积小、重量轻，因此运输成本低。

This is possible only because disk drives, while valuable, are small and light and so cost little to ship.

youdao

由于立方体卫星体积小、重量轻，将它们送入地球轨道的成本比传统通信或GPS卫星要低得多。

Because they're so small and light, it costs much less to get a CubeSat into Earth's orbit than a traditional communications or GPS satellite.

youdao

塑料吸管绝对不是塑料污染的最大来源，但是它们最近饱受抨击，因为大多数人不需要用它们来喝饮品，也因为它们尺寸小、重量轻，无法回收利用。

Plastic straws are by no means the biggest source of plastic pollution, but they've recently come under fire because most people don't need them to drink with and, because of their small size and weight, they cannot be recycled.

youdao

So each of these cups again have different weights if I want to find the lightest of them I might start not knowing which is which.

它们的重量互不相同，如果我要,找出最轻的一个，而我根本不知道会是,哪一个。

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