查询词典 datum point

Based on the analysis of datum cycle markers in logging,drilling and seismic data,3 moderately-long-term(MSC3-MSC5) and 15 short-term cycles(SSC13-SSC27) were identified in the formation using the concept of high resolution sequency stratigraphy.

在对测井、钻井及地震资料的基准面旋回识别标志进行分析的基础上，运用高分辨率层序地层学原理，在下石盒子组识别出3个中期旋回(MSC3—MSC5)和15个短期旋回(SSC13—SSC27)。

Manual this explain oil pump shell draw dark washing hole basic course , turn-ups of mold design and mainly calculating the datum for the first time mainly.

本说明书主要阐述了油泵壳体的第一次拉深和冲孔翻边模具设计的基本过程及主要计算数据。

Good practice in engineering drawing, must be able to consider datum position, key dimension control and tolerance stack-up.

工程制图方面有很好的操作和应用，能够考虑基准的选取和定位、关键尺寸的控制、以及设计制造公差的累积

Good practice in engineering drawing, must be able to consider datum po sition, key dimension control and tolerance stack-up.

工程制图方面有很好的操作和应用，能够考虑基准的选取和定位、关键尺寸的控制、以及设计制造公差的累积？

Software, and simulated by Monte Carlo method. The simulation results are conducted by descriptive statistics. Two "drop-in" assembly design lens groups were studied to calculate the stack-up element tilt and decenter within a cell and the resultant deviations of the optical axes away from the mechanical datum axis. The results indicate that the opto-mechanical tolerance model can analyze the critical to quality parameters of a lens system. As a result, the performance of the lens system can be anticipated by the opto-mechanical tolerance model before mass production.

戊n体编辑，并以蒙地卡罗方法模拟，模拟结果以叙述统计呈现；最后以两个"投入式"组立设计的镜群组为案例，计算镜片在镜筒内的累积偏心角度公差、偏心距离公差及镜片光学轴的累计偏移量，其结果显示该模型可模拟一个镜头系统的关键品质参数；所以，镜头系统的性能在大量生产之前可藉本光机公差模拟模型预测其品质与良率。

The primary goal of this research is to improve the limit of traditional forecasting methods by using grey prediction skill that required just four datum to analyze the teacher supply and demand problem resulted from the reduce of "class size" number. The results are as follows

本文研究的主要目的即针对改善传统预测方法对所需数据个数过多的要求限制，采取灰预测技术仅需四个数据即可加以建模预测，藉以分析因为班级规模人数降低所衍生的师资供需问题。

Although the ordinary stack velocity analysis method has already matured the ordinary NMO equation is based on the supposal that the shot and receiver points are located a same horizontal datum plane .

常规叠加速度分析方法虽然业已成熟，然而常规动校正方程是基于炮，检点处于同一水平基准面的假设，在地表起伏较大的地区，即使采用浮动基准面的方法，其速度分析误差也不容忽视。

By means of field survey, systems analysis and history datum analytic methods, on the base of natural, social, economic conditions of the source region, the author analyzed the type, characters of vegetation of the source region, then aimed at the problems of produce in source region, and then took out thereinafter conclusions on studying approaches to sustainable utilization of grassland in the source region.

本文通过实地调查、系统分析、历史资料分析的方法，在阐明江河源进行草地生产的自然、社会、经济现状基础上，分析了江河源区植被分布的类型及特点、江河源区草地退化原因，并针对江河源区草地生产存在问题，提出了江河源区草地可持续利用的途径。

Objective:to study the epidemiologic characteristic of mortality of malignant tumors in zhongshan city.method:selecting the investigated datum of mortality of malignant tumor in zhongshan city as sample uses sas statistics software to analyse and forecast the mortality by time series.results:morlality of male malignant tumor and both male and female malignant tumour showed the risen trend from 1970 to 1989.the trend will be kept in future.both will be separately risen to 121.05/105 and 83.92/105 in 2 000.mortality of female malignant tumour will be kept in about 43.59/105 in 2000.couclusion:mortality of both male and female malignant tumor takes on the trend of diffirent change.the male showed risen trend;the female showed the fluctuation of non-trend random.rising mortality of malignant tumor greatly threaden the crowd health.

目的：研究中山市恶性肿瘤死亡率的流行学特点，为制定防治计划提供依据。方法：以中山市恶性肿瘤死亡率调查资料为样本，应用sas统计分析软件对恶性肿瘤死亡率进行时间序列分析与预测。结果：1970～1989年男性恶性肿瘤死亡率和男女合计恶性肿瘤死亡率均呈现上升趋势且有继续保持的趋势。到2000年将分别上升为121.05/10万和83.92/10万左右；女性恶性肿瘤死亡率呈现无趋势的随机波动且将继续保持下去，到2000年保持在43.59/10万左右。结论：中山市男女恶性肿瘤死亡率呈不同变化趋势，男性恶性肿瘤死亡率呈现上升的趋势，女性恶性肿瘤死亡率呈现无趋势的随机波动。恶性肿瘤死亡率的上升对人群的健康构成重大威胁。

Any of the Micron tick mark the number of datum Micron are both zero, in short, squeege instrument slot on both sides is a plane?

任一微米刻度线的基准面的微米数是否均为0μm，简言之，刮板仪槽两边是否为平面？

Warden: That's a beautiful dog, but don't bring her again.

那是条漂亮的狗，但是不要再把她带来了。

You get up in the morning – no hangover!

你第二天早上起来的时候—不会宿醉！