土壤采样；
For lunar exploration missions such as soil sampling, payload instrumentation must safely descend to the lunar surface.
为了完成对月球土壤的取样等科学任务，必须确保某些有效载荷安全降落在月球表面。
Inherent limitation involved in the traditional soil sampling techniques makes it imperative to explore alternative new techniques.
传统的土壤采样技术存在着诸多的不足，使得新技术的探索势在必行。
Sampling designing based on spatial distribution and variability of soil properties is an important issue in recent studies on soil sampling.
利用土壤空间变异特性和空间分布特征进行采样设计是当前土壤采样研究的重要内容。
The soil moisture is measured in the field by time domain reflectometry , neutron probe and soil sampling, The results showed that the measured values are different.
应用时域反射仪、中子仪和上钻法测定了农田土壤水分，并对农田土层含水量和主体贮水量的测定结果进行了比较。
Soil sampling technique was one of ways of getting the information of soil nutrition. And the tested results are very important to making a reasonable prescription map.
精准农业土壤采样技术是变量施肥技术获取土壤养分信息的重要手段，土壤养分测定值是生成施肥处方图的重要数据之一。
Based on the abroad collected data and study of soil sampling, the rule of water -salt movement in Songnen Plain and the process of soil Saline -alkali were analyzed fully.
在广泛搜集资料和实地土壤采样调查的基础上，系统分析人为干扰下松嫩平原水盐运动规律及土壤盐渍化过程。
Result of forest soil sampling indicates that: design-based approach is mainly based on the traditional investigation, the number of samples and study area are mostly considered by this approach.
森林土壤取样的研究结果表明：基于设计的取样策略主要建立于传统的调查取样的基础上，需要多少样本，研究区应设定多大范围是设计考虑的主要内容。
To improve efficiency and veracity of soil sampling in testing bulk density, the cutting ring method and in situ soil tube method were combined and a multi-segment in situ soil sampler was designed.
为了提高土壤容重测定中土样采集的效率和精准性，将环刀法和原状取土管法结合，进行了分段式原状取土器的研制。
The study found that soil carbon levels varied, depending on soil type and sampling depth.
该项研究发现，根据土壤的类型与取样的深度不同，土壤储存的碳水平有所不同。
Impacts of fertilization and sampling position on soil moisture and aboveground biomass of Medicago sativa were studied in a long term, in situ experiment.
基于苜蓿长期连续种植定位试验，研究了不同施肥与采样位置差异对苜蓿草地地上部分生物量和土壤水分的影响。
In the paper, emission of volatile sulfur gases from paddy soil was discussed in a growth period of paddy rice by constructing a field sampling system.
通过建立野外采样系统，对一个生长周期内水稻土释放的挥发性含硫气体进行了检测。
The content of soil available boron was investigated by sampling in tobacco planting regions of Chongqing city.
通过田间采样和田间试验对重庆市植烟区土壤有效硼含量以及施硼效应进行了研究。
This paper adopted the soil distribution area, sampling data and soil organic content from the first soil general survey and applied the technique of GIS to estimate soil carbon reservior in China.
根据中国第一次土壤普查得到的土壤各类型分布面积、采样数据、土壤有机质含量，运用GIS技术，来估算土壤碳库。
Based on the exploration and sampling on the spot and with plenty of direct shear tests, it can be concluded that the roots can enhance the ability of resist shear strength of soil.
基于实地踏勘和取样，通过大量室内直剪试验发现根系对土壤抗剪能力的提高有一定影响。
Methods: Using cluster sampling, the water fluoride content, depth of well, materials of well as well as quality of blocking soil of FCRWQIP before 1996 in Xinyang were measured.
方法：采取整群抽样办法，对被调查县1996年前的所有改水工程水氟含量、打井深度、井壁结构材料和井周封闭土质进行调查分析。
Based on synchronous sampling of soil and crops from 39 counties of Chongqing, 456 soil samples and 936 crop samples (including stem, grain of paddy and corn) were collected.
通过对重庆市全境范围39个区县农田土壤及主要粮食作物进行同步取样调查，获取土壤样品456份，水稻、玉米植株及籽粒936份。
A field investigation of corrosion status of buried pipeline and measurement of the soil parameters were conducted, accompanied with corrosion test piece laying and field sampling.
进行了现场腐蚀状况调研，对现场埋地管道的土壤腐蚀情况就地测量了相关参数，并进行了腐蚀试片埋设和现场取样工作。
The number of sampling points on variation of forest soil were determined for given estimating precisions of dynamic state of forest soil water.
为了保证土壤水分动态的测定精度对森林土壤水分变异性进行了研究，以合理确定样点数。
Because the soil and water conservation factor was not concluded in net method, the soil erosion modulus calculated with net method was higher than that calculated with sampling survey method.
由于网格法没有考虑水土保持措施因子，调查得到的土壤侵蚀量结果比采用抽样调查法得到的结果偏大。
The geostatistics were used for analyzing the spatial variability of the soil particle composition in Mengding tea plantation with two sampling scales at Sichuan province.
利用地统计学方法，在两个尺度下对蒙顶山茶园土壤颗粒组成的空间变异性进行了研究。
The sampling platform, known as a "lab-on-a-chip," will quickly and inexpensively identify the presence of biological hazards in complex matrices, such as blood, soil, food, and water.
该采样平台被称为“芯片实验室”，将快速低成本地识别血液、土壤、食品和水等复杂物质中是否存在生物危害。
Through sampling soils of different years and depth in the reclaimed areas of Fushun coal mine, we analyzed the space-time change of soil nutrients and organic carbon.
以素有煤都之称抚顺矿区复垦土壤为例，对不同年限不同深度的土壤进行分析，揭示了抚顺煤矿区土壤养分的时空演变规律。
A new sampling apparatus has been developed which can be operated in both the pulse introduction and the conventional introduction and used to determine copper content in soil.
研制了一种新的进样装置，该装置既可常规进样又可以脉冲进样，可用于土壤中铜元素的测定。
The reasonable sampling numbers for soil organic matter, total N and total P were 24,34 and 10 respectively.
取样间距对合理取样数目具有一定的影响，合理取样数目分别为：有机质（24）、全氮（34）、全磷（10）。
N fertilization in both plantations significant decreased the biomass of the first five order roots by the method of soil cores in four sampling seasons and two soil depths.
施杀虫剂处理导致两林分四个季节、两个土层中细根生物量显著增加，但是，两树种仅前两级根的生物量显著增加。
The results indicate that:The distributing characteristics of soil organic carbon and storage within the sampling region is that north is higher than south.
研究表明：采样区域内土壤有机碳含量和土壤碳储量分布特点均为北高南低。
The content of fenvalerate in soil near to the grout hole varied with the difference of sampling location affected by seawall soil structure.
由于受海塘土层结构的影响，药物灌浆孔附近土壤中氰戊菊酯的含量随取样部位不同而有差异。
The researches were captured by sampling investigation on soil animals in purple soil of 3 kinds of different habitat in Qidong county, Hunan during 2001-2002.
2002年，对湖南省祁东县紫色土分布区按不同生境设3个样区进行土壤动物调查。
The researches were captured by sampling investigation on soil animals in purple soil of 3 kinds of different habitat in Qidong county, Hunan during 2001-2002.
2002年，对湖南省祁东县紫色土分布区按不同生境设3个样区进行土壤动物调查。
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