L the outer layers of space suit protect against harmful radiation from the Sun and bullet-fast particles of space dust called micrometeoroids.

宇航服的外层能够防御太阳辐射和高速微流星体造成的伤害。微流星体是指太空中的微小尘粒。

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L the middle layers of a space suit are blown up like balloon to press against the astronaut's body.

宇航服的中间层就像气球那样充气加压，紧紧地挤压着航天员的身体。

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In the next window choose on Layers (l) from the View drop-down menu, then check the Smart Radius button and set the Radius field to 2.5 px.

在打开的窗口中选择显示模式下拉菜单中的图层(L)，然后开启智能半径选项，将该值调为2.5 px。

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L is for layers.Wearing loose, lightweight clothes, one layer on top of another, is better than wearing a single heavy layer of clothing.

VOA: special.2009.12.23