封闭

Which is a closed geometric figure?

以下哪个是封闭的几何图案？

The evolution of the Youjiang basin in the Triassic shows that it is not a "regenerated geosyncline" as thought in traditional view, but constitutes a complete Wilson- Cycle with its earlier development in the late Palaeozoic.

4认为三叠纪右江盆地不是传统观点所说的"再生地槽"，而是与晚古生代一起共同构成一个完整的威尔逊旋回—处于晚古生代多岛洋体系格局的最终封闭阶段。

Temporarily waste bin facility, keeping closed. Keep clean for dirt-exhaust facility (geosyncline, lampblack and ventilation) i.

有专门放置临时垃圾的设施并保持其封闭，排污设施(地槽、抽油烟机和排风口等)保持畅通清洁

Temporarily waste bin facility, keeping closed. Keep clean for dirt-exhaustfacility geosyncline, lampblack and ventilation

h。 有专门放置临时垃圾的设施并保持其封闭，排污设施（地槽、抽油烟机和排风口等）保持畅通清洁

Temporarily waste bin facility, keeping closed. Keep clean for dirt-exhaust facility geosyncline, lampblack and ventilation

h。 有专门放置临时垃圾的设施并保持其封闭，排污设施（地槽、抽油烟机和排风口等）保持畅通清洁

Temporarily waste bin facility, keeping closed. Keep clean fordirt-exhaust facility geosyncline, lampblack and ventilation

h。 有专门放置临时垃圾的设施并保持其封闭，排污设施（地槽、抽油烟机和排风口等）保持畅通清洁

Easily store food broken bits inside the gums ditch, adhere to a germ spot, become the good district that the germ growth breeds, because it presents to close appearance, don't easily sweep and often cause the gum burning disease and tooth the paroxysm occurrence is for week.

龈沟内易积存食物碎屑，附着菌斑，成为细菌生长繁殖的良好区域，由于其呈封闭状态，不易清洁，常导致牙龈炎症及牙周疾病的发生。

I think I have been closed to the lacrimal gland smart to,?

我想、我的泪腺已经封闭叻把、？

The ends of these courtyards are enclosed by industrial fibre glass screens which are hung in two layers.

这些庭院的两端封闭的玻璃纤维工业是挂在两层屏幕。

Therefore, in glazed when not fully closed to maintain the oxidation of the atmosphere.

所以在釉面没有完全封闭的时候要保持氧化气氛。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！