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For the accuracy and complexity of different complexity analysis method are different, firstly, the ultimate strength of pressure hull is mathematically analyzed and calculated by ANSYS, and then the empirical formulation is modified according to the modified factors, which are gotten by the accurate model of ANSYS. So that the calculation accuracy will be improved and the calculation time will be reduced after the analysis model of pressure hull structure is integrated.

不同分析方法的准确度和复杂度不同,本文采用ANSYS这种高精度分析方法对于载人球壳的极限强度进行计算,并根据所得到的计算结果来对采用经验公式方法得到的结果进行修正,使得多学科设计优化模型中集成修正后的载人球壳结构分析模型以提高计算结果的精确度和降低运算时间。

In this paper, the dynamic equation of thin axisymmetrical shell involved rotation angle has been derived by lagrange equation using semi-analytical method.

本文采用半解析方法,利用拉格朗日方程,重新推导了包括转角在内的旋转薄壳的动力方程;利用加权余量法导出了壳内流体的考虑了压缩性影响的运动方。。。

Completely caseless ammunition was also studied on several occasions, notably the German 4.7 mm designs, but issues with reliability and "cook off" were never completely solved.

完全无壳的彈藥也有一定的研究,著名的有德国设计的4.7毫米无壳弹,但是其可靠性和自燃的问题从来没有能够彻底解决。

Moreover some notations of Riemannian geometry we need in this thesis are given there.

第二章介绍我们所讨论的薄壳的数学模型,这些模型都是经典的薄壳模型,而它们是由位移方程的形式所给出的。

After main parameters of impeller and casing are optimized using the numerical predictions of aerodynamic performance, the size of the vaneless diffuser and the relative place between the impeller and casing are optimized to decrease the friction loss.

利用气动性能数值预估对叶轮和蜗壳的主要参数进行优化后,再对无叶扩压器的大小和叶轮与蜗壳的相对位置进行优化,减少摩擦损失,最终得到的后向通风机测试结果,全压和效率均提高了11%。

A: a modern commonly used nested shapes, and live cavity back summarises two modes of benefits and to improve the processing time of spine areaand book sealed shell of the nucleus Raphe Magnus bodysites gelatinize bonding, and then using cloth lining and back, the book block and book sealed shell bridgeis overlap sticking with the method.

答:现代常用的一种套合造型,活腔背总结了以上两种方式的优点并加以改进,即在加工时将书脊部位与书封壳的中缝部位涂胶粘接,再利用环衬与书背布,将书芯与书封壳牢固套合粘联的方法。

One DHL water-fire tube boiler with angular tube structure has been introduced,which is a new type boiler improved from DZL water-fire tube boiler with upper or lower shell. It has characteristics of both DHL angular tube type water-tube hot water boiler and DZL water-fire tube hot water boiler.

介绍了一种采用角管结构的DHL型水火管热水锅炉结构特点,它是继DZL型上置锅壳的水火管锅炉和DZL型下置锅壳的水火管锅炉之后出现的一种新型水火管锅炉,它兼具DHL型角管结构水管热水锅炉和DZL型水火管热水锅炉的特点。

These vibration phenomenon in the long time use will cause the clutch house or the connect place between clutch house and the clutch shaft broken. Moreover will reduce the life-time of transaxles or engine supporter and affect the drivers' or the passengers' comfort.

此振动冲击及噪音在长期自动变速箱的使用下,将造成离合器壳的破裂或离合器壳与离合器轴间之焊接处的裂损漏油,而严重缩短自动变速箱及引擎脚架等的使用寿命,并影响驾驶人及乘客之驾驶与乘坐的舒适性。

The ventilation system screamed into high gear, airlocks slammed into place where the chemical breached the hull--leaving parts of the ship effectively dead--and in the chilling near-vacuum the remaining chemical couldn't react to completion with the metal on the hull.

通风制度进入高速档之内尖叫,airlocks 猛然地撞进化学者突破了壳的地方--有效地完全地离开船的部份--和在无情者中接近-用吸尘器打扫那剩余的化学无法由於在壳上的金属对完成产生反应。

The article introduces structure and design characteristics of Water Chamber Shell and expansion joint for 300MW and 600MW High Pressure Heater,and the way of drawing for the three-dimensional bottom shell of water chamber.

某公司设计制造的300MW、600MW机组高压加热器的水室包壳及膨胀节的结构、设计特点,及水室下部包壳的三维画法。

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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。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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