Investigation of pollution situation of bottom layer of a landfill by boring sampling was carried out.
通过钻探取样对一个垃圾场底部土层的污染状况进行了现场调查。
Sampling examination by metallographic test was the traditional method for measuring the depth of the quenched layer in crankshaft, which could not meet the needs of the production of auto industry.
传统的曲轴淬火层深度测试方法是金相抽检，不能满足汽车工业生产需要。
So, all above mentioned makes it necessary to study the truth-preserving sampling technique for the deep-sea surface layer sediments.
这些问题的提出就使得深海海底表层沉积物的保真取样技术研究非常有必要。
The sand-cobble is often considered as a difficult sampling layer.
砂卵石层是钻进取心困难的地层。
The present balanced two-layer sample rotation system is applicable only to the monthly survey with two-stage sample designs and with small primary sampling units.
目前的平衡两层次样本轮换模式只适用于一级单元规模较小时的两阶段抽样月度调查。
A balanced three-layer sample rotation pattern is presented in this paper to solve the problem of rotation for the quarterly surveys with three-stage sampling designs.
本文构造了一种平衡的三层次样本轮换模式，解决了三阶段抽样季度调查的三层次样本轮换问题。
This paper provides all procedures of the controlling layer of sampling module, stirring module, washing module, CAN and TWI communications and are proved right after testing.
详细叙述了加样模块、搅拌模块和清洗模块三个模块控制层的程序流程以及CAN和TWI通讯的程序，经过调试证明所有程序运行正常。
To resolve the problem of time-delay estimation for sub-sampling sinusoidal signals, a new method composed of multi-period sampling and multi-layer correlation is proposed.
针对正弦信号时差估计的多解模糊问题，提出采用多周期取点欠采样和多重相关方法来解决。
To resolve the problem of time-delay estimation for sub-sampling sinusoidal signals, a new method composed of multi-period sampling and multi-layer correlation is proposed.
针对正弦信号时差估计的多解模糊问题，提出采用多周期取点欠采样和多重相关方法来解决。
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