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By using RAD7, a long term of and continuous measurement of radon concentration in an open mom in Chengdu were carried out, finafly, 947 data were obtained.
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本文论述了空气中氡的迁移机理及氡浓度受温度、相对湿度、气压的影响，并利用RAD7型氡测量仪于2004年3月至2005年10月在成都市某开放性室内对空气中氡浓度进行了连续测量，得到了947个氡浓度数据。 |
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By using Separate Source Method and Mine Statistic Method, the paper makes a comprehensive estimate about the gas emission, when light support top-coal caving technology is adopted in mining face during the initial phase in the third mining level, which i
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摘要通过采用分源法和矿山统计法相结合的预测方法，综合分析得出了三水平初期开采阶段工作面采用轻放工艺回采时的瓦斯涌出量，极大地指导了矿井下一步的瓦斯管理和安全生产。 |
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By using a Reynolds-averaged two-dimensional computation, the effect of upstream wake on unsteady separated flow field of downstream adjacent vanes was investigated in low-speed axial compressor.
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摘要利用二维数值模拟研究了低速轴流压气机上游尾迹对下游相邻叶排的非定常分离流场的影响。 |
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By using a Spot light as a key light the previous method is sadly bound to indoor settings or, at maximum, outdoor settings at night time.
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通过将聚光灯用作主灯光，前面介绍的方法效果只局限于室内，或者最多影响到黑夜时的室外。 |
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By using a carefully optimized form of iontophoresis, we are able to deliver specified profiles of neurotransmitter directly to single synapses.
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并经由谨慎的利用离子电泳法，我们可以直接传送特定型式的神经传导物质到单一突触。 |
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By using a fixed point theorem in cones, we investigate a second-order equation and the theorem of existence of unique positive periodic solution is given.
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摘要应用不动点定理，研究了一类二阶时滞微分方程，给出了其唯一周期正解的存在性定理。 |
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By using a new optical input power level detection and signal treatment method to control the gain of the receiver and keep its output level within the required range, a novel feedforward AGC optical receiver without radio frequency feedback circuits is r
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我们采用一种入射光功率电平检测与处理的新方法，对模拟光接收机的增益进行控制，将接收机输出电平控制在要求的范围内，实现了一种新型的无射频反馈电路的自动增益控制光接收机。 |
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By using a nonlinear equation satisfied the charge operator, the spectrum is calculated exactly in energy basis for each cell.
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根据电荷算符满足的非线性运动方程，在各单元能量基上，精确地计算了能谱。 |
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By using a normal laundry price, in case of any compensation, we will strictly follow the rules stated in our laundry list.
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如无办理此项过程，万一发生赔偿，我方将严格遵守洗衣单上说明处理。 |
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By using a numerical method, the effect of changing in magnetic field upon vibration frequency and coefficient of reduction is presented.
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最后给出数值结果，表明磁场的变化对振动频率及衰减系数的影响。 |
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By using a reflector and two pentaprisms, one beam of light is separated into two parallel beams, then respectively they are received by two optical systems of the large scale photoelectric theodolite with certain imaging D-value which correspondingly rep
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方法是利用一块反射镜和两块五棱镜将一束准直光束分光成两束平行光束，大型经纬仪的两个光学系统分别接收这两束平行光，两束平行光所成像的脱靶量差值即为两光学系统的光轴平行度。 |
