双层

And the wall of test workshop is completely paved with 25mm thickness stainless steel perforated acoustic panel, 50mm cavity; using the sound lock double sound insulation door, the sizes are 2.4×1.64 m、2.149×1.04 m respectively; Double layer 3×8 mm thickness bulletproof glass sound insulation window, 50mm cavity; air inlet uses dissipative muffler, the size is 5×3×2 m, sound splitter is 150 mm thickness stainless steel protective facing.

试车间墙面满铺25 mm厚不锈钢穿孔吸声板，50 mm安装后空腔；采用声闸双重隔声门，尺寸分别为2.4×1.64 m、2.149×1.04 m；双层3×8 mm厚防弹玻璃隔声窗，50 mm空腔；进风口选用阻性消声器，尺寸为5×3×2 m，消声片为150 mm厚不锈钢护面。

Using matlab, the acoustic reflected pressure from a submerged elastic/piezoelectric bi-laminated plate is calculated.

本文采用matlab 软件，对水下弹性/压电双层板的声波反射进行了数值研究。

When the moment made by material on turning plate is greater than that of heavy hammer and rocker, the disc will open adown to discharge. After discharge the moment made by heavy hammer and rocker will drive disc close quickly to realize locking air. Because the structure of valve is two-layer, there is always one disc in pipe that is in close condition. So it can discharges and lock air at the same time.

即当作用于翻板上的物料产生的力矩大于重锤摇杆产生的力矩时，阀板打开卸灰，一旦积灰卸去后，重锤与摇杆产生的力矩使阀板迅速关闭，实现锁气是由于本阀采用的是双层结构，因而使管道上阀板始终有一个是关闭状态，可使卸灰与锁气同时达到目的。

It is a relic of the Northern Wei Dynasty, double-hexagonal, is next on the air, brick cord cut, India's Lin Shu-chu.

它是北魏遗物，双层六角，上实下空，绳纹切砖，有印度的束莲柱。

The paper introduces as how to design the exterior double ventilating curtain wall with air flow theory to realize energy efficiency and it also presents the measures to make sure quality of the curtain wall.

文章介绍了如何应用空气流动原理来设计外循环通风双层幕墙，以达到节能的目的，并提出相关的措施来保证幕墙性能。

In order to meet the increasing passenger demand, bus operators in Singapore have tried hard to introduce buses with huge capacities: The introduction of 12m air-con double-decked "Super Bus" of SBS Transit is a remarkable success.

为了应付不断上升的客量需求，新加坡的巴士营运商不惜千方百计，引入载客量更高的巴士；新捷运於早年引进的"Super Bus"十二米双层空调巴士，就是其中一个成功的例子。

The oscillation of an air-filled double-layered spherical shell immersed in water was examined.

研究了浸没於水中的双层球壳振动问题。

AMORETTO Electric Cup as a vehicle for Zijia business travelers, families traveling who Zhushui product, its appearance on the all-clear double-cup body design not only increased the beauty of the cup is convenient for users to keep control of the situation, as well as the water temperature use of the anti-hot intimate consideration.

AMORETTO车载电热杯作为一款针对自驾商旅人士、家庭出游人士的煮水产品，其外观上采用全透明双层杯体设计不仅增加了杯子的美观更是方便了用户对水温情况的随时掌控以及使用时的防烫贴心考虑。

Structured on different levels, it doubles up as an amphitheater.

结构贯穿不同的层，形成一个双层的空间。

The double membrane vesicle, which was produced by budding of the outer membrane of amyloplast, accumulated starch to form new amyloplast. The double membranes of amyloplast invaginated and the inner membrane dilated to form new amyloplast in the amyloplast.

淀粉质体增殖产生新淀粉质体有多种方式：出芽增殖、缢缩增殖、中间隔板增殖、被膜向内出泡或内陷增殖、被膜形成双层膜小泡再积累淀粉增殖，它们均是淀粉质体被膜的一种膜行为。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。