Another corresponding surface of the surface fastener is on the supporting plate.
表面紧固件的另一对应的表面在支承板上。
The utility model relates to a two-polarity ultrasonic transducer, composed of a fastener, a reflecting plate, a piezocrystal, a sound direction output plate, and an oscillation amplifying circuit.
本实用新型涉及一种双极式超声波换能器，它由紧固件、反射板、压电晶体、单向输出板、振荡放大电路等组成。
Abstract:The paper compares the cost performance of four practice of wall fastener by value engineering principle, such as embedded pipe, embedded steel bar, embedded steel plate and after the anchor.
摘要：采用价值工程原理，比较预埋钢管法、预埋钢筋法、预埋铁板法、后锚固法的连墙件性价比。
应用推荐