acoustic ceiling

The ceiling is closed up with varnished boards which renders the acoustic properties excellently.

顶棚用涂过漆的木板连接在了一起,起到了良好的音响效果.

Roof top and facade secondary structure can effectively reduce the out-of-plane calculated length of the primary chords, and provide support conditions for ETFE cladding structure, acoustic ceiling at the bottom chord and roof drainage system, forming the lateral force resisting system for the structure.

屋顶与立面次结构可以有效减小主结构弦杆面外的计算长度，提供ETFE膜结构、下弦声学吊顶与屋面排水系统的支承条件，并形成结构的抗侧力体系。

The differences of the acoustic diffusion when terraces, QRD and absorptive material of distinct parameters are employed on the ground, the ceiling and the rear wall respectively are discussed.

讨论了在地板、天花板和后墙分别安装阶梯以及不同参数的二次余数扩散体和吸声材料时，声场扩散性的改变。

MS Novak took a variety of medieval weapons from the collection of the Royal armouries and poked them through pieces of acoustic ceiling tile to see what shape they made.

诺瓦克从皇家军械库的藏品中取来不少中世纪兵器作戳刺声学天花板实验，研究它们留下的切口。