误差因素

Based on the finite strain theory, a subroutine‐UEL for ABAQUS is developed , and the residual pore pressure under wave load is computed, and stability of soil around pipeline and seabed is analyzed. Regarding the liquefaction soil as model, a subroutine‐UMAT for ABAQUS is developed , and the behavior of pipeline in liquefaction soil analysis qualitatively.

并据此模型对复杂波浪荷载下埋置管线的动力响应进行分析，发现波浪的非线性和随机性以及管线-土体之间的接触效应对计算结果的影响十分显著，如果忽略这些因素，则会在分析埋置管线动力响应时造成较大误差。4。

We made the light absorption coefficient measurement system with Nuclepore filter which were used to collected aerosol particles. The system has one laser beam which is split into two laser beam, one being information light which transfer through glass pipe, the other being reference light which transfer directly through atmosphere. so the measurement system could well eliminate the effect of all kinds of measurement errors which were caused by optical ullage and circuit noises and power fluction.

本测量系统利用核孔过滤膜采集气溶胶粒子，测量系统的光路由同一光束分为两路光组成，一路为信号光，通过光管传输，另一路为参考光，通过信号光和参考光相比很好地消除了测量系统中由于光管损耗、电路放大倍数的差异及光功率起伏等因素所引入的误差对吸收系数测量的影响。

Maybe the temperature control could be further improved on. It would be nice to program the brew temperature with 1 °C precision, and maybe a PID algorithm could be used to reduce the thermal over-, and undershoot.

或许在温度控制方面可以做得更精准一些，若能做到程式设定冲煮温控的误差在摄氏一度以内，那就太棒了，再加上PID就可以排除冲煮水温过高等不稳定因素。

This thesis study one of important factor in per unit area yield travel speed measure device and his sensor choice and relevant error analysis of form especially.

本论文重点是对单产的重要因素之一的行驶速度测量装置及其传感器形式的选择和相关误差分析进行了研究。

However, numerical modeling for nonlinear seismic waves is faced with problems such as steep gradients, shocks and unphysical oscillations. Accordingly, some special treatments have been presented to solve these problems. However, in our knowledge, there is no effective method to overcome these problems by far.

非线性弹性波的数值模拟存在陡峭间断面、数值振荡以及误差的指数级增长等现象而破坏数值解的稳定性、收敛性，能否消减上述现象的不利影响成为制约数值方法有效与否的重要因素。

The model errors or uncertainties and disturbances in manipulation make the position errors unpreventable.

而机械手模型的不确定因素和外界的扰动又使这种位置误差不可避免。

Four testing methods to detect the pollen viability of cucumber were being compared. The results indicated that I-KI staining method and acetic red dyeing were not suitable to judge the pollen viability of cucumber. Tetrazolium method can be used but the error is oversize. By and large, the Germination in vitro method was an efficient, stable and simple way to judge the pollen viability of cucumber. The component of culture medium is 10% sucrose+ 100mg/L H_3BO_3. If inoculated intraday, collect pollen of fresh abloom flower at 6:00 and if inoculated at the second day, collect before dark.

比较了4种常用的花粉活力测定方法——I-KI染色法、醋酸洋红染色法、TTC染色法和离体萌发法，认为I-KI染色法和醋酸洋红染色法不适于测定黄瓜花粉生活力，TTC染色法虽适用但误差较大，综合考虑各项因素，确定离体萌发法是最准确、简便、稳定的测定黄瓜花粉活力的方法。

A complete set of thermodynamically consistent property data (vapor pressure, aqueous solubility, octanol solubility, octanol-water partition coefficient, octanol-air partition coefficient, and air-water partition coefficient) for sixteen PAHs naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, chrysene, benzoanthracene, benzofluoranthene, benzofluoranthene, benzopyrene, indeno[1,2,3-c,d]pyrene, dibenzo(a,hanthracene and benzoperylene was derived from measured data reported in the literature.

然而，由于存在实验室内、实验室间和不同仪器、不同方法间的误差等因素，已发表的物化性质数据存在小分子量PAHs物化性质参数多但存在差异、大分子量PAHs相关参数较少甚至缺乏的问题。

Therefore, the die's initial blanked accuracy depends on the accuracy of manufacture, quality and so on.

因此，冲模的制造精度与质量等因素决定了冲模的初始冲压精度，也造就了冲件的初始误差。

Just like what Professor Coker said: putting mash onto one's head leading his headache disappear means nothing to scientist.

随机就是为了减少人为的误差，对照就是考虑到实验条件之外的其他影响因素。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐