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- Two basic microwave approaches are used to measure soil moisture, one is passive which is based on radiometry and the other is active and uses radar. 微波遥感测量上壤水分的方法主要分主动和被动两种,它们都是基于干燥土壤和水体之间介电常数的巨大差异。
- The ground calibration experiment for ESA s SMOS Mission will use an L-band radiometry to measure soil brightness temperature of Takelamagan Desert. 欧空局SMOS任务的塔克拉玛干沙漠地面定标实验,采用L波段微波辐射计测量塔克拉玛干沙漠的土壤亮温。
- YANG Shujun. Simply and conveniently measure soil organic matter with potassium dichromate oxidation method[J]. Modern Agriculture, 1997(40: 23. 杨树钧.;用重铬酸钾氧化法简便快速测定土壤有机质含量[J]
- This paper included two parts: one is to generate the calibration process of Watermark sensor; the other is to use the sensor to measure soil moisture tension in field test. 摘要本文主要可以分成两部份，一为土壤水分张力感应器之率定，主要是要了解土壤水分张力感应器之讯号处理程序，并以统计方法回归土壤水分张力值与土壤水分张力感应器之电压值的关系。
- The system consists of dielectric sensor, pressure sensor and depth sensor, which can measure soil water content and soil hardness from 0mm to 500mm on profile simultaneously. 本系统包括土壤介电传感器、圆锥指数传感器及深度传感器,可以快速、同步、实时地获得0~500mm范围内土壤剖面含水率与圆锥指数信息。
- The soil infiltrability is influenced by slopes and soil circumstances in field and the Linear Run-on Method was used to measure soil infiltrability in the field. 摘要为分析坡度和土壤环境对土镶入渗性能的影响，采用线源入流测量法对田间土壤的入渗性能进行试验研究。
- The good they have done for me is beyond measure. 他们对我所做的好事简直无可估量。
- The principles and methods were introduced for measuring soil organic matter content with the aid of spectrum data diffusely reflected by the soil. 摘要阐述了利用有机质的反射光谱特性对土壤有机质含量进行测定的原理及方法。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- We need a yardstick to measure our performance by. 我们的表现需要一个检验的标准。
- In this paper,the calibration measures of Time Domain Reflectometry (TDR) and Neutron Probe is discussed on basis of their theories and methods of measuring soil water content,and the processes of calibration experiments are described in detail. 探讨了时域反射仪和中子仪测定土壤含水量的原理,并在禹城试验站对各自适宜的标定方法进行了试验。
- That measure will be carried into effect very soon. 这项措施将在最近付诸实施。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- His resignation is a measure of how angry he is. 从他辞职一事可见其气愤的程度。
- The measured soil pressure, the distribution of pore-water pressure and the changeable law of displacement of a fender structure in a highway bridge are analyzed in detail in this paper. 摘要对某公路大桥超深锚锭基础围护结构上实测的土压力、孔隙水压力分布及其位移变化规律进行了详细分析。
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Can you measure accurately with this ruler? 用这把尺子能量得准吗?
- Water has permeated (through) the soil. 水已渗遍那片土壤。
- The measure fell in with popular demand. 这项措施符合人民的要求。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
