underside
音标发音
- 英式音标 [ˈʌn.də.saɪd]
- 美式音标 [ˈʌn.dɚ.saɪd]
- 国际音标 ['ʌndəsaid]
- 英式发音
- 美式发音
基本解释
- n.下面；阴暗面
英汉例句
- A roll of fat jiggled on the underside of her arm.
她胳膊下侧有一层肥肉一颤一颤的。 - They painted the underside of their planes with a black varnish.
他们在飞机的底部涂上了一层黑漆. - The underside of the rock was covered with seaweed.
岩石的下面布满了海草. - A roll of fat jiggled on the underside of her arm.
她胳膊下侧有一层肥肉一颤一颤的。 - They painted the underside of their planes with a black varnish.
他们在飞机的底部涂上了一层黑漆.
词组短语
- cork underside 底托
- underside inletpump 底吸泵
- underside formwork 底模板
- furnexpert underside 锅炉底
- underside pldined 下巩固板
短语
英英字典
- the side of something that is usually closest to the ground
- The underside of something is the part of it which normally faces towards the ground.
剑桥英英字典
柯林斯英英字典
专业释义
- 下面
This paper analyzes the ultrasound law of refraction, reflection and attenuation characteristic by the drill string, finds out a wave form of ultrasonic transmitting in drill pipe, and provides theory support for underside experiment. At the same time, according to require of underground signal transmission and space of instrument, choose compatible piezoelectricity material, develop configuration and size of a new ultrasonic transducer for experiment system, matching acoustic and electrical parameters, assure every parameter adapt to experiment requirement.
本文分析了超声波在钻柱中传输的折射、反射等衰减理论特性,找出适合钻柱中传输的超声波波型,并为下面的实验提供理论支持,同时,根据井下传输信号的要求和仪器空间要求,优选换能器压电材料,设计新型换能器的结构和尺寸,并达到声匹配和电匹配,满足实验需求;通过实验手段研究换能器的特性,优选适合在钻柱中传输的信号形式,研究超声波信号在钻杆和动力钻具中的传输特性,分析了超声波在不同钻具中的衰减情况;设计和优化发射电路和接收电路,并自行设计了发射电路中的专用变压器,使其与换能器达到良好匹配,确保激发换能器工作在最佳状态。 - 下侧
- 下侧
- 底面