一个特别设计的号角负载丝绸高音提供了广阔的分散，使每一个球员像亲声。
A specially engineered horn-loaded silk tweeter provides wide dispersion to make each player sound like a pro.
实验结果表明压力放大器不仅可以放大压力，还能提高负载入口声功和热机的效率。
The experimental results have demonstrated that the pressure amplifier not only amplifies the pressure ratio, but also improves the acoustic power.
应用声超声及超声穿透试验对钢板上有无煤负载两种情况进行了对比研究。
A comparison study on two situations, with and without coal load on a steel plate, has been carried out by using audio and ultrasonic frequency.
本发明的目的是在不使用额外的隔热材料之下用单一产品提供隔热，隔声和防水，并大大地减低建筑物的负载。
The objective is to provide heat, sound and water insulation with a single product without using additional insulation materials and to reduce the load of the building by a considerable degree.
本发明的目的是在不使用额外的隔热材料之下用单一产品提供隔热，隔声和防水，并大大地减低建筑物的负载。
The objective is to provide heat, sound and water insulation with a single product without using additional insulation materials and to reduce the load of the building by a considerable degree.
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