Added to this that a tunnel would have to be about 50 km long and that the removal of earth would require a fleet of trucks etc it is liable to detection.
此外，一条长达50公里的隧道必然要挖出大量的土方，需要大量的卡车装载运出，诸如此类的事件都使得隧道很容易被发现。
Trimming lead times on sunspot detection would allow for better forecasts of space weather—bursts of radiation and charged particles from the sun that can cause real problems on and around Earth.
黑子探测可用于预报空间天气---即源于太阳的辐射爆发和带电粒子等引起的各种空间活动现象。
But as detection methods improved, astronomers began to find planets closer in size to Earth and planetary systems that contain nearly as many planets as our solar system.
但随着观测手段的提高，天文学家们开始找到与地球的大小相近的行星，以及与我们的太阳系拥有大致相同数目行星的行星系统。
Nailing down the technique for the detection of water is a key step toward finding Earth-like planets that have water and other key life-related molecules, Deming said.
戴明指出，确定水的探测技术是发现类地行星的关键步骤，这种行星可能拥有水和其他与生命相关的重要分子。
Two methods are available for the detection earth faults in the rotor circuit.
有两种方法可以用来检测转子回路接地故障。
MODIS and Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) supplies different methods of snow detection.
MODIS和被动微波辐射计amsr - E提供了识别积雪的不同方法。
Through setting up reasonable earth-electricity model, the distribution problem of electrical potential in uneven medium is resolved and system detection accuracy is improved.
通过建立合理的地电模型，解决了非均匀介质条件下的电势分布问题，进而提高了系统的检测精度。
Pigeons, for example, can see literally millions of different hues9 and are thought to be among the best at color detection ability of any animal on earth.
比如说鸽子，它们可以分辨数百万种不同的颜色，被认为是地球上辨色能力最强的动物。
In detection of underground old kiln roadways and geological bodies by automatic earth resistivity method, the anomalies gradually become smoothly and fuzzy with their depth.
自动地电阻率法在探测地下老窑巷道等地质异常体中，当异常体的埋深增加时，其相对视电阻率曲线的异常会逐渐变得平缓而且模糊。
Recent development status and equipments performance of space optical remote sensors in both earth and space detection fields are described.
概述了当前航天光学成像遥感器在对地、对天观测的多个领域的应用现状及其达到的性能指标。
So it is necessary to find some ways for the fault location detection. In the phase-to-earth fault power system, the value of zero-sequence impedance is directly related to the earth conductivity.
这样就降低了供电可靠性，故找出一种新思路使其能更准确有效地判断故障点具有重要意义。
Conclusion Show that the resistivity tomography survey method is very effective for detection of active earth...
结论在城市活断层调查中，电阻率层析成像测量方法是一种十分有效的勘探方法。
Conclusion Show that the resistivity tomography survey method is very effective for detection of active earth...
结论在城市活断层调查中，电阻率层析成像测量方法是一种十分有效的勘探方法。
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