To find out how having an air sac changed the sounds produced, Dr DE Boer created plastic models of the mouth, tongue and throat and forced air down them to produce different vowel sounds.
为了解释气囊如何改变声音，deBoer博士制作了口腔、舌和喉的塑料模型，并压入空气使之发出不同的元音。
Some of the models contained an air sac.
其中一些模型含有气囊。
This paper gives the designing requirement of an air spring rubber sac vibration isolator on the basis of analysing the vibration disturbing frequency spectrum.
从对环境振动频谱分析得出了对隔振器的设计要求，并分析了低压充气囊式空气弹簧的隔振特性。
Results:The intracavity air sac urinary catheter was invented to be used through the sheath of electrotomyoscope smoothly.
结果：该腔内气囊导尿管能顺利地在电切镜下使用。
This paper introduces the rigid mathematical model of water pressure impacted dash air sac in the pipeline, and focus on a stretch mathematical model and its solution.
简要介绍了压力水流冲击管道中截留气团的刚性与弹性数学模型，并且着重介绍了弹性数学模型的建立及其解法。
Objective: to invent an intracavity air sac urinary catheter to meet the clinical requirement.
目的：研制一种适合临床需要的腔内气囊导尿管。
The utility model relates to an air sac type sport flying disc, which is composed of an air sac, a power electric motor, two rotary wings, a drive rod, etc.
本实用新型涉及一种气囊式运动飞碟，是由气囊、动力电机、两旋翼、传动杆等组成。
This shaft have overcome the problems which a single air sac of a traditional one existence.
这种轴克服了传统气胀轴单一气囊所存在的问题。
In apes the hyoid attaches to a large pouch called an air sac , that makes sounds bigger and deeper.
猿的舌骨依附于一个很大的喉囔，科学家称之为气囊，它可以让声音更大、更深沉。
The air sac can also be internally filled with a certain amount of gas generant which includes carbonate and pharmaceutically acceptable organic acid.
气囊内还可以装有一定量的气体发生剂，包括碳酸盐以及药学上可接受的有机酸。
The expanded air sac presents a microspheric squash shape, and the surface is provided with slots which are arranged in order.
膨胀后的气囊呈球型南瓜状，表面有规则排列的沟槽。
The expanded air sac presents a microspheric squash shape, and the surface is provided with slots which are arranged in order.
膨胀后的气囊呈球型南瓜状，表面有规则排列的沟槽。
应用推荐