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径迹     
相关语句
  track
     The verification of Φ_U(r)/■_U≈Φ_M(r)/■_M with solid state nuclear track detectors
     用固体径迹探测器验证公式Φ_U(r)/_U≈Φ_M(r)/_M
短句来源
     Total 32 fission track ages range from (163.0±6.4) Ma to (46.9±7.2) Ma and their confined lengths from (14.5±0.1) μm to (11.3±0.4) μm with standard deviations of ~1.4~2.7 μm.
     32个磷灰石裂变径迹年龄为 (16 3.0± 6 .4 )~ (4 6 .9± 7.2 )Ma ,平均径迹长度为 (14 .5± 0 .1)~(11.3± 0 .4 ) μm ,长度标准差为 1.4~ 2 .7μm。
短句来源
     The angular distributions of fission fragments are measured for systems of 120 MeV ~(14)N+~(118)Sn and 138 MeV ~(20)Ne+~(118)Sn with mica track detectors and gold-surfacebarrier silicon detec-tors.
     本工作采用固体径迹探测器和半导体探测器测量了120 MeV ~(14)N+~(118)Sn和138 MeV ~(20)Ne+~(118)Sn裂变碎片角分布.
短句来源
     Apatite fission track ages of three diorite samples is range from (78±5) Ma to (95±5) Ma, and the lengths of horizontal confined spontaneous fission tracks are (13.2±1.2)—(13.5±1.3) μm.
     裂变径迹年龄为(78±5)—(95±5)Ma,平均径迹长度为(13.2±1.2)—(13.5±1.3)μm。
短句来源
     The fission track age of the zircon from a surface sample 97CK01 is 134±11 Ma, and that of the apatite is 66.8±2.5 Ma.
     地表样品 97CK0 1的锆石裂变径迹年龄为 134± 11Ma ,磷灰石的裂变径迹年龄为 6 6 .8± 2 .5Ma。
短句来源
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  state track
     CR-39 plastic solid state track detector
     CR-39塑料固体径迹探测器
短句来源
     CA-7801 solid state track detector for searching uranium ore body
     用于找矿的CA-7801固体径迹探测器
短句来源
     Application of solid state track detectors in neutron radiation monitoring
     固体径迹探测器在中子辐射监测中的应用
短句来源
     The detection of α-particles by a SC-79 plastic solid state track detector
     用SC-79塑料固体径迹探测器探测α粒子
短句来源
     Measurements of absolute fission rate with solid state track spark automatic detector
     用固体径迹火花自动计数器测量绝对裂变率
短句来源
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  track analytical
     Fission track analytical res ults about tectonothermal evolution and metallogenic processes show that Lanping Basin at least undergoes three stages of tectonothermal events, accompanied by three stages of metallogenic processes which develop gradually from western edg e to the center of the basin.
     裂变径迹法对兰坪盆地构造热演化与成矿作用的研究结果表明 :盆地自中生代以来 ,至少经历了三次构造热事件 ,出现了三次成矿作用过程 ,成矿作用是由盆地西缘向中央地带逐渐发展的
短句来源
     Time-temperature history modeling based on apatite fission track analytical data shows that these samples experienced similar low-temperature history.
     根据磷灰石裂变径迹年龄数据进行的时间-温度历史模拟表明,十万大山地区的磷灰石样品基本反映了相同的低温段热演化史。
短句来源
  track ages
     Total 32 fission track ages range from (163.0±6.4) Ma to (46.9±7.2) Ma and their confined lengths from (14.5±0.1) μm to (11.3±0.4) μm with standard deviations of ~1.4~2.7 μm.
     32个磷灰石裂变径迹年龄为 (16 3.0± 6 .4 )~ (4 6 .9± 7.2 )Ma ,平均径迹长度为 (14 .5± 0 .1)~(11.3± 0 .4 ) μm ,长度标准差为 1.4~ 2 .7μm。
短句来源
     Apatite fission track ages of three diorite samples is range from (78±5) Ma to (95±5) Ma, and the lengths of horizontal confined spontaneous fission tracks are (13.2±1.2)—(13.5±1.3) μm.
     裂变径迹年龄为(78±5)—(95±5)Ma,平均径迹长度为(13.2±1.2)—(13.5±1.3)μm。
短句来源
     Fission-track ages for these samples range from 9.6±0.8 to 89.2±2.3 Ma with mean track lengths varying from 7.9±3.7 to 11.6±1.9 μm. The apatite fission track ages from various geographical regions suggest difference in styles of cooling during the Mesozoic-Cenozoic.
     磷灰石裂变径迹年龄范围为(9.6±0.8)~(89.2±2.3)Ma,平均裂变径迹长度变化范围为(7.9±3.7)~(11.6±1.9)μm。
短句来源
     Zircon samples Shw-1, SW027, SW025 yield fission track ages that are older than their respective strata ages, reflecting the provenance ages of these zircons.
     样品Shw-1、SW027、SW025的锆石裂变径迹年龄大于样品的地层年龄,反映的是源区的锆石年龄。
短句来源
     The apatite fission track ages are 59.4±3.4 ~105.6±9.8 Ma in eastern Dabie area, which show the characteristics of wide range, inhomogeneous distribution and asymmetric pattern, and discontinuity along main faults' striking and dipping.
     东大别山地区磷灰石裂变径迹年龄值为 5 9 4± 3 4~ 1 0 5 6± 9 8Ma ,具跨度较大 ,空间分布不均匀 ,沿主要断裂走向及倾向均不连续的特点。
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      track
    During the deployment, the nodes compete to track the event and cooperate to form an ordered topology.
          
    A decimation method is proposed to track large-sized targets and real-time experimental results verify the effectiveness of the proposed algorithm.
          
    By updating coefficients at chip rate and feeding back hypothesized chips, it can track time-variability and combat ISI effectively.
          
    The concept of validated tree is developed to track variables referenced by database operations in scripts.
          
    Due to complicated barriers, it is difficult to track the path of the mowing robot and to avoid barriers.
          
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      state track
    Investigation of heavy cosmic-ray nuclei by solid-state track detectors on orbiting platforms
          
    It is shown that the solid-state track detector technique has advantages for obtaining the characteristics of the energy spectrum.
          
    This fact predetermines the development of new experiments which plan to use large-volume targets, large-area emulsion, and solid-state track detectors [1].
          
    For the detection of the fission fragments, solid state track detectors were used.
          
    Volatile, sulfidic elements (Cd, Pb) were isolated and investigated for spontaneous fission events with a mica-plastic solid state track detector sandwich.
          
    更多          
      track ages
    According to the determination of apatite fission track ages and length, the annealing characteristics of apatite fission track, geothermal evolution and prediction of petroleum source in studied area are discussed.
          
    The zircon fission track ages range from 158 Ma to 289 Ma and the apatite ages are between 64 Ma and 140 Ma.
          
    Corresponding to apatite fission track ages, the three tectonic-mineralizing epochs are 140-132 Ma, 109-97 Ma and 64 Ma, which means age at about 100°C after the mineralization.
          
    Fission track ages have been measured for 12 sphenes, 18 zircons and 25 apatites separated largely from Lower Tertiary magmatic rocks of East Greenland, with a few examples from Caledonian rocks.
          
    Tectonic interpretation of an inverse gradient of zircon fission-track ages with respect to altitude: alpine thermal history of
          
    更多          


    The beta-ray spectrum of RaE was investigated by the cloud chamber experiments. About 600 tracks with H σ above 2000 were obtained. The spectrum was found to have an end point at 7500 Hσ. The average energy per disintegration was estimated to be 4.01×105 electron-volts.

    戊种镭原质(Ra E)所放出之β线穿过威尔圣成云箱之径迹(tracks),用照相机照下。因成云箱在磁场中,而磁力之方向又与β线所取之途径垂直,故由照片上所量出径迹之半径,ρ,可定β线之能力,盖磁场之强度,H,亦已知也。通常以Hρ代表能力大小之相当值。用戊种镭原质所摄之照片上量出10Oβ线径迹,其Hρ值皆在2000高斯-厘米(Gauss-cm.)以上。以各种Hρ值及在该值范围内所有径迹之数目作一曲线。将该曲线延长至与Hρ轴相交,其交点7500高斯——厘米,即为β线具有最大能力者之Hρ值。由β线能力大小之分配,用绘图方法得计算该线之平均能力,其值为4.01×10~5电子——伏特(electron—volts)。

    ~~

    本文讨论了乳胶的畸变对多次库仑散射测量的影响,并给出了在不同情况下选择测量单元长度的标准。对减小噪音影响的小单元测量法应用在高能范围(PβC~几千兆电子伏)作了尝试,得到了相当满意的结果,为对高能粒子能量的精确测量,提供了有效方法。此外,还进一步综合了小单元法与高次差法,给出了小单元高次差法,也得到与实际符合的结果。此法能有效地消除畸变,可用于对倾斜径迹测量,提供了扩大倾斜径迹测量范围的可能性。

    ~~

    用面积扫描方法共得到了9GeV质子同乳胶重核相互作用中产生的292个锤状径迹。首先讨论了从锤状径迹中区别出Li~8,Li~9和B~8裂片的方法,并对可能存在的各种扫描偏差作了分析;然后给出了含有锤状径迹的星按叉数的分布,Li~8,Li~9和B~8的发射频率以及Li~8裂片的能谱与角分布。并将Li~8裂片的能谱和蒸发理论作了比较。

     
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