取样

• A core was removed from this area so that the crack surfaces could be examined .
  从这一区域取样芯，以便检验裂纹表面。
• In the case of uranium the sample location or medium is not as critical .
  分析铀时对取样点位置或介质的要求就不那么严格了。
• Sampling techniques and sample size requirements vary with the techniques used .
  取样方法和取样多少的要求因所采用的测试方法而异。
• Very great strides in sampling ocean-floor sediments were taken in the late 1960's .
  海底沉积物取样的巨大进步是发生在六十年代后期。
• As the sampler is dragged along the bed, it collects a sample from the top layer of bed material .
  取样器沿河底拖动，收取表层河床质。
• The output of the sample-and-hold system now goes into an analog-to-digital converter .
  取样和保持系统的输出现在又进入一个模数转换器。
• The sampling system is controlled by an adjustable program timer or by a manual pushbutton .
  取样系统用可调程序定时器或手动操作的按纽控制。
• Standard field procedures are employed in taking samples for analysis by delayed neutron determinations .
  采用标准的实际操作规程为缓发中子测定分析取样。
• Rafts are generally more suitable than single boats for sediment sampling operation because of their stability .
  由于稳定性较好，筏组比单舟更适用于进行沉渣取样工作。
• It will enable scientists to obtain samples of the mysterious layer which lies immediately below the earth's crust .
  科学家们能从紧接地壳下面的那个神秘莫测的地层取样。