量测分析

Modeling and derivation mathematics result of the use of Matlab software Simulation tests of its accuracy and error analysis, to verify the measurement of two boring bar/boring displacement signal the feasibility of the entire system, so as to the smooth development has laid a theoretical foundation.

介绍了两点法测量镗刀位置信号的方案构思，采用最小二乘法对镗杆的圆度误差和被测圆面的偏心量进行了建模计算，并对数学推导的结果利用Matlab软件进行仿真检验，对其精度和误差作了分析，验证了两点法测量镗杆／镗刀位移信号的可行性，从而为整个系统的顺利开发奠定了理论基础。

The concrete dam displacement is studied considering the factors such as foundation modulus increasing with depth, seepage coefficient reducing as depth, seepage coefficient anisotropic, curtain and drainage in the dam heel and seepage field and stress field coupling. Some conclusions are obtained: if the foundation is considered only with the seepage volume load, the dam top horizontal displacement of the reference base point develops upstream. When the foundation size increases, the reference base point's horizontal displacement increases. However, the value measured by the reversed pendulum anchored to the rock foundation is often regarded to be absolute displacement. The above practice is estimated to be limited when the water load on the dam foundation is taken into account.

分析了地基变形模量随深度逐渐增加、渗透系数随深度逐渐减小、坝基渗透系数各向异性、坝踵设置帷幕排水，以及考虑渗流场和应力场耦合等对混凝土坝位移分量的影响，得出如下结论：作用在地基上的水荷载，使混凝土坝坝顶相对参考基点（倒垂锚固点或坝踵正下方1倍坝高处）的水平位移指向上游，而参考基点的水平位移随地基截取范围的增大而增大，由于大坝工程上常将倒垂线锚固在岩基深处，并认为该倒垂线测值为绝对位移。

Management content: The company product mainly covers the microscope, the tool maker's microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, to test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non-destructive inspection, the medical instrument, the processing machinery and so on altogether 28 broad headings, 170 minor sort large-scale specialized precision instrument measuring appliance sale enterprises.

经营内容：公司产品主要涵盖显微镜、工具显微镜、投影仪、硬度计、测厚仪、放大镜、天平、量具量仪、测绘仪器、测量仪器、实验仪器、电化学仪器、物理仪器、分析仪器、生化仪器、无损检测、医疗器械、加工机械等共28大类，170余个小类的大型专业精密仪器仪表价格企业。

The Corporation product covering microscope, the tool maker's microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non-destructive inspection, the medical instrument, to process the machinery altogether 18 broad headings, 170 minor sort.

公司产品涵盖显微镜、工具显微镜、投影仪、硬度计、测厚仪、放大镜、天平、量具量仪、测绘仪器、测量仪器、实验仪器、电化学仪器、物理仪器、分析仪器、生化仪器、无损检测、医疗器械、加工机械共18大类，170余个小类。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。