air bladder

Prevention Measure Of Air Bladder And Sand Grain At Concrete Surface Of Railroad Bridge

铁路桥梁混凝土表面气泡和砂纹的防治措施

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。

To whole length 3.50-4.97 mm, air bladder of larvae formed about 8-15 days post hatching.

至8~15日龄，全长3.50~4.97mm时，鳔形成；

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；

Unlike its faster friends, the pelagic fishes, such as tuna and mackerel, this fish moves up into mud flats to feed during high tide, and has an air bladder that allows it to breathe easy during these trips.

不像其它游得更快的小伙伴，比如金枪鱼和鲭鱼这样的上层鱼类，骨鱼在涨潮时钻进泥滩觅食，气囊让它在找食物的路途上呼吸得更轻松。

Fill it bed to bed with bit, in order to Prevent air bladder appear.

嵌塞时注意用小块填料分层分段嵌实.防止出现空气泡.

Widely distributed family of carnivorous percoid fishes having a large air bladder used to produce sound.

分布广泛的食肉性鲈形目鱼，长有能发出响声的气泡。

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。

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%。

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。