国产在线aa视频免费观看,a级国产乱理论片在线观看丶,色婷婷久久综合中文久久一本,好爽进去了视频在线观看国版,国产乱色精品成人免费视频樱花
English
ADDRESS: HOME > PRODUCT CENTER > APPLICATION
APPLICATION
HYDRO-BIOS: Bottom Sampler acc. to Ekman-Birge
Category: Box Corer
Art.No.: 437 2xx
Keywords: Ekman-Birge, Box Corer, Bottom Sampler
Supplier: Qingdao Watertools Technology?Co., Ltd.
Introduction:

The Bottom Sampler acc. to Ekman-Birge is a quantitative sampler with precise sampling area to achieve nearly undisturbed samples in soft grounds. It consists of a sturdy-walled metal cabinet equipped with two spring-loaded jaws which are released by a messenger. Two light plates cover the top opening of the sampler to prevent the sample from being washed out during ascent.