While they're playing scene two in front of the curtain, we can drop in the scenery for the next act.

他们在幕前演第二场时，我们可以放下下一幕的布景。

With all the teachers and students' enthusiastically concerted effort, we achieved great success in the Sports Festival. We will drop the curtain.

在全校师生的热情参与和共同努力下，我们的体育节取得了圆满的成功，就要落下帷幕了。

The experimentation is done to validate the performance of big water curtain fireproofing. The result shows thatthewater curtain can stop fire from spreading and make a drop in temperature clearly.

对大型水幕进行了防火分隔效果的试验研究，证明水幕能有效阻止火灾蔓延，降温隔热效果明显；

Under the effect of damage load, glass curtain wall structures are often exposed to damage and drop off.

玻璃幕墙结构在灾害性荷载作用下，常常发生破坏和脱落。

While they're playing scene two in front of the curtain, you can drop in the scenery for the next act.

他们在幕前演第二场时，你可以放下下一幕的布景。