双层壳 meaning in English
double skin
double-skin
Examples
- Fixed railway installations . signalling . double sheaths
铁路固定设备.信号装置.双层壳 - When the backing is a double - shell , the water layer causes obvious modulation phenomenon to the absorption coefficient curve
背衬为双层壳体时，水层对吸声覆盖层的吸声系数曲线有明显的调制现象。 - In addition , the sound radiation from fluid - loaded reinforced double cylindrical shells , periodically connected by slabs , is formulated
最后，本文还导出了由实肋板连接的加筋双层壳在水下振动和声辐射的理论公式。 - Whether the backing is a single - shell or a double - shell , the absorption performance approaches more closely to that with a rigid backing
背衬为单层壳体或双层壳体时，从整体上讲，吸声系数更趋近于刚性背衬而非软背衬的情况。 - This device has many advantage character with lower flow , higher delivery lift , small area for occupying and also has double cases structure , in which internal case is vertical and sectional type and external is simple sack type in order to guarantee safety arriving without any leaking absolutely
该型泵具有流量小、扬程高，占地面积小的优点，该泵为双层壳体结构，内壳为立式节段式，外壳为筒袋式，确保运行安全，达到绝对无泄漏。