Manual machines can put pearls in any place in the outer zone.

手动机器人可以把珍珠放在外区任何地方。

Calcium content increases gradually from outer zone to inner zone in dentin.

牙本质从外层到内层钙含量逐渐升高；

The outer zone is made up of reticular cells, columnar cells and mucous cells;

外区主要由网状上皮细胞、柱状上皮细胞、黏液细胞组成；

Four planets were already known around the star, with two lying near the inner and outer edges of the habitable zone, where liquid water - and therefore potentially life - could exist on its surface.

已有四颗围绕该恒星的行星被发现，其中两颗分别位于宜居区的两端。宜居区是使生命得以可能的液态水能存在的区域。

In sunny days, these glass outer walls can be completely opened and that quiet seat zone instantly becomes a part of the exterior space.

而在风和日丽的日子里，这些玻璃外墙可以完全完全打开，安静的座椅区瞬间又成为了室外空间的一部分。