there were pottery ink-slab, lacquer ink-slab and copper ink-slab in the han dynasty as well as stone ink-slab.

1、

writing brush, ink stick, paper and ink slab are known as "the four stationery treasures" .

人们通常把笔、墨、纸、砚称为“文房四宝”。

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2、

dab out: a means of comparing or examining ink properties such as tack or ink it down to a thin film on the ink slab with a circular motion.

拍试：手来检查或比较油墨特性如粘度和颜色的方法。用手指掭取小量油墨，在油墨械一以打圈方式把它分薄。

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3、

the shadowiness in the heart, it is ok really to look for psychological doctor?

心里有阴影，找心理医生就真的可以了吗？

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4、

applying sem to wood identification of ancient sank-ship in the grant canal of sui and tang dynasty

应用扫描电镜对隋唐大运河古沉船木构件树种的鉴定研究

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5、

the sheltered harbour provided a favourable spot for rest and trade with china's interior.

这个避风港提供了休息和与中国内地进行贸易的有利场所。

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6、

Study on the Ranging Performance of the Airborne Lidar

机载激光雷达测距性能研究

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7、

Research on Ranging Performance of Laser Scanner in the Navigation of Mobile Robot

移动机器人导航中激光雷达测距性能研究

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8、

Research on Ranging Equation for Laser Radar

激光雷达测距方程研究

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9、

Finally, this paper provides design samples of range measurement system for precision tracking radar.

最后，本文给出了精密跟踪测量雷达测距机设计范例。

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10、

Study on Ranging Signal of Pulse Coherent Laser Radar

脉冲相干激光雷达测距信号研究

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11、

According to the GPR range equation, the major factors including scattering cross-section and backscatter gain of target are discussed in this paper.

根据探地雷达测距的基本公式，讨论了雷达测深的重要影响因素：反射目标体的反向散射增益及散射截面积。

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12、

Distance Measuring Method and Accuracy Analysis in Non-Cooperative Bistatic Radar

非合作双基地雷达测距方法与精度分析

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13、

Sequences with perfect auto correlation performance were useful to improve signal noise ratio of distance measuring radar, which could efficiently realize the object sound with extremely low transmitting power.

应用具有良好相关特性的伪随机序列可以提高雷达测距信噪比，有助于实现高效率低功率的目标探测。

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14、

The Effects of Multi-Channel 3D Imaging Radar Ranging and Angle Measurement by Channel Phase Distortion and Amplitude Phase Inconsistency Between Channels

通道失真及通道间幅相不一致对三维成像雷达测距测角的影响

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15、

Finishes the hardware design of range measurement circuit, and analyzes fixed error and digital frequency measurement error according to the physical circumstance of FMCW short range radar measuring range.

完成了测距电路的硬件设计，并根据FMCW近程雷达测距的实际情况进行了固定误差及数字测频误差的分析。

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16、

Lidar Distance Measurement System with a DSP Phase Detector

使用DSP鉴相器的激光雷达测距系统

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17、

Improving Range Precision of FMCW Radar Using Estimating Maximum Algorithm of Spectrum

提高FMCW雷达测距精度的谱最大值估值算法

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18、

Application of Chinese Remainder Theorem to radar range ambiguity resolution

用孙子定理求解雷达测距模糊性

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19、

The linearity of the FMCW signal is an important index to appraise the frequency modulated source. It determines the radar range resolution in the system of radar range.

线性调频连续波（FMCW）信号的线性度是衡量线性调频源质量的一个重要指标，在雷达测距系统中，它决定着雷达的距离分辨率。

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20、

High Precision Phase-measuring Method for the Radar Distance-measuring System

雷达测距系统中高精度相位测试方法的研究

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