the air bladder

According to the analyses of forming causation of air bladder and sand grain at concrete surface of railroad bridge, this paper studies it from five aspects of bridge prefabricate craftwork, and puts forward relevant prevention technique measure.

通过对铁路桥梁混凝土表面气泡和砂纹形成原因的分析，从桥梁预制工艺5个方面进行试验研究，并提出了相应的防治技术措施。

In five stages from one chamber air bladder stage to formation of fins stage, the discriminant success are 63.51%, 63.22%, 75.31%, 91.92% and 98.44% respectively by sagitta;

自鳔一室期至鳍条形成期，以矢耳石来判别时，各期判别成功率分别为63.51%、63.22%、75.31%、91.92%和98.44%。

Bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii.

用气泡或腮呼吸生活于南半球的多骨鱼类；有时被归为总鳍鱼类。

In the course of transmission, mud pulse signal mainly disturbed by drilling pump, engine in the bottom hole, air bladder contained in mud and movement of drilling equipment.

泥浆脉冲信号在传输过程中主要受钻探泵、井底动力机、泥浆中的气泡及活动钻具的干扰；

Have recommended using enzyme technology to produce the production technology of the air bladder glue and air bladder peptide in the development value of the health products trade.

并介绍了运用酶技术生产鱼鳔胶的生产工艺以及鱼鳔肽在保健品行业的开发利用价值。

The Selection and Calculation of the Bag-type Accumulator Study of range of air polytropic exponent value for bladder accumulator

气囊式蓄能器选型计算气囊式蓄能器气体多变指数值域的研究