测高

A differential demodulation system of Laser Doppler is designed. Phase grating is adopt to obtain same intensity measured beams with big separative angle in the system,and by focusing the waists of two Gauss beams on the measured object with extender and collimating lens group, the smallest speckle and the superposition of plane waves are obtained.

设计了一种差动检波系统，采用相位光栅获得同光强、大夹角的测量光束，用扩束准直透镜组使两束高斯光束的束腰聚焦在被测物体上，得到最小光斑和平面波的叠加。

These indicate that the instrument can meet the requirements of rate and accuracy in color measurement in industry.

结果表明，此仪器不仅精度高，还满足了工业生产中对测色的速度和准确度要求。

The test- tube count also provides at accuracy, repeatability, and higher detection rate than plate count. It is an effective and easy way to count Lactobacillus.

该法测得结果的重复性好，而且菌落总数检出率较平板法高，是1种高效简便的乳酸菌活菌计数方法。

ABSTRACT In the last two decades, high resolution array direction finding techniques have become more and more popular, and have been shown...

高分辨阵列测向技术以其优异的分辨和估计性能在众多的领域展示了良好的应用前景。

It is an improved algorithm of the method using specific weights to realize high-resolution direction finding with single channel receiver.

这种跟踪算法是用特定权实现单通道接收机高分辨测向的进一步完善。

This paper studied relative characters and correlation of three ear leaf for 15 high combining inbred lines for select better inbred lines.studied that parents selected and mated,predicted heterosis.

通过对15个高配合力亲本自交系及其组配的8个杂交种棒三叶有关性状及相关性的研究，揭示优良自交系的特征，探索亲本的搭配，予测杂种优势的大小。

There were six themes in this study. First of all, the geometry of in-vivo human pinna and ear canal was measured non-invasively. The 3D model of pinna and ear canal was reconstructed and then measured based on the image processed by HRCT. Second, the 2D curvature of in-vivo human ear canal was measured non-invasively. The angles and curvatures of superior and inferior walls of first and second bends were measured. The 2D curvature of ear canal was computed by sine and cosine laws. Third, the in-vivo human ear canal was reconstructed by RE. The distribution of sound field was analyzed by FEM. The data obtained in this study can be the reference for clinicians and audiologists. Fourth, the 3D model of earmold of hearing aids, including the ear shell and the housing, was reconstructed by RE based on the image of in-vivo human ear canal obtained by CT.

本研究主题其四，对於听力受损之患者往往皆须选配助听器帮助其放大声音，其中耳模是助听器的外壳，也是接触到耳朵的仪器，而耳道型助听器系位於耳甲艇及耳甲腔延伸至耳道第一弯道处，在制作耳模必须利用灌模方式来取得紧配之耳模，其中耳模在助听器的使用过程中，常因耳模松脱，无法与人耳道紧密配合而造成漏音，因此，利用活体人外耳道电脑断层影像，重建耳道型助听器耳模之三维立体模型影像，其中耳模包括了耳壳及耳模内部空间，并进行几何外型量测，探讨耳道型助听器之体容积大小，也提供了制作耳模时快速、精确度高、减少翻模及修模次数，可减少误差率之方法。

For the orbit estimation algorithm based on the measurement of the geomagnetic field vector,when measurement data influenced by outliers,filtering advents deviation,convergence becomes slow and even diffuses.

近地轨道由于有丰富的地磁场资源，且具有相当好的地磁场模型，可以采用高斯球谐函数来描述地磁场模型，这样磁场的强度和方向是位置的函数，因此能采用磁测的方法对卫星进行定轨导航[1，2]。

Through analyzing the technology characteristics of electronic intelligent trip, a new good performance and inexpensive intelligent trip AITU is developed which is of the advantages such as motorization, strong currency characteristics, and integrated the functions of measure, watching, protection, control and communication.

它共有六个模块：微处理器模块、待测信号获取模块、电源模块、控制模块、人机交互模块、串口通信模块，可根据具体需求在软、硬件上增加或裁减部分模块，具有很强的灵活性；而且精度高，稳定性好，实时性强，完全符合国家的标准要求。

This article focuses on research of prediction of rock-burst happened in Cangling extreme long-tunnel engineering, comparison of tunnel carving details in the performing stage and prevention measures.

通过对苍岭特长隧道岩爆问题的预测研究和施工阶段洞身开挖情况对比，以及针对本工程的岩爆防治措施研究，探讨了岩爆预测判据对苍岭隧道工程的适用性，揭示了苍岭隧道围岩的岩性特征和初始应力场，掌握了苍岭隧道岩爆发生的烈度和基本分布规律，提出了对岩爆问题的工程防治措施，另外，根据工程区地质条件和岩石物理力学性能参数，建立了相应的地质力学模型，采用有限元法建模反演分析，其结果与通过钻孔水压致裂试验测得的地应力结果比较，显得较为吻合，并得到施工阶段通过洞壁应力恢复法分析结果的验证，验证表明理论模型和有限元模型的适用性及分析应力场是较为准确和合理的，并在此基础上对苍岭隧道岩爆进行分段预测和采取了较有成效的工程防治措施，具有较高的工程应用价值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。