迪埃尔斯正试图缩小尺寸，他说一种小桌子大小的激光即将问世。

Diels is trying to cut down the size and says that a laser around the size of a small table is in the offing.

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这些设备的屏幕对角线尺寸都超过了5英寸，可能还会包括大小与手持使用的实际尺寸一样大的屏幕。

The devices have screens with a diagonal dimension that is over 5 inches and may include screens that are as large as is practical for handheld use.

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确保背包尺寸合适，大小和使用者的体型相符。

Make sure the pack fits properly and its size is suitable for the wearer's body.

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So, then we'll get to turn to a new kind of mechanics or quantum mechanics, which will in fact be able to describe what's happening on this very, very small size scale -- so on the atomic size scale on the order of nanometers or angstroms, very small particles.

然后我们要讲到一种,新的力学--量子力学,它可以解释,发生在很小尺度,大约是原子尺寸大小,也就是纳米或埃的量级。

麻省理工公开课 - 化学原理课程节选