Most geologists and many historians today believe that Wegener's theory was rejected because of its lack of an adequate mechanical basis.
今天,大多数地质学家和历史学家认为,魏格纳的理论之所以遭到拒绝,是因为它缺乏足够的力学基础。
This paper summarizes the teaching experience about the mechanical basis of chemical equipments, and puts forward opinions of heightening the teaching quality of this course.
总结了化工设备机械基础课程的教学经验,提出了提高本课程教学质量的见解。
In the teaching of "mechanical basis", the steps of implementation of item teaching method include: preparing item, establishing scheme, carrying out scheme, evaluating and communicating.
在《机械基础》课教学中,实施项目教学法的具体步骤包括项目的准备、计划制定、计划实施、评估和交流。
Rock mechanics models have been established for different types of rock structure to offer a reliable mechanical basis for the analog analysis of host rock stability while mining in a broad area.
采用围岩分类专家系统中的不确定性推理处理方法,以工程地质学家谷德振提出的岩体结构划分标准为基础,对金川二矿区岩(矿)体用模糊数学中择近原则的方法进行模糊综合判别。
But there was still work to do to complete the transition from mechanical models of the atom to observable quantities measured in the laboratory as the basis for a quantum mechanics.
但仍要做很多工作以完成从原子的力学模型到实验室可测的可观测量的转变,并将其作为量子力学的基础。
So say Raj Mohanty of Boston University and his colleagues, who have created a nanoscale mechanical logic gate that could form the basis of tiny mechanical computers.
说上面这翻话的是拉吉·莫汉蒂和他波士顿大学的同事们。他们共同创造了可组成微型机械计算机的纳米级机械逻辑门。
Objective: To provide mechanical equipment maintenance and fault diagnosis of the theoretical basis and reference methods.
为机械设备维修人员提供故障诊断维修的理论依据和参考方法。
To introduce the basis of selecting section area in mechanical property calculation of steel wire for bridge cable.
介绍桥梁缆索用镀锌钢丝力学性能计算中选择截面积的依据。
These results can be used as the basis of setting up mechanical model of PUR foam plastics.
这些结果可以作为建立PUR泡沫塑料力学模型的基础。
All these results will provide a reliable experiment basis for studying mechanical behaviors like failure mechanism and developing engineering application of bamboo laminate.
这些研究结果将为竹材层合板的破坏机理等力学行为的研究和工程应用开发提供实验依据。
These useful results provide scientific basis for the electroforming of moulds with long service time and excellent mechanical performances.
这些有益的实验结果为电铸加工使用寿命长、机械性能好的模具提供了一定的依据。
On the basis of systemic research on mechanical design CAD software, objective model of belt driving design CAD software is proposed, and the related realization methods are discussed.
在系统研究机械设计CAD软件特点的基础上,提出了带传动设计CAD软件的目标模型,并对具体的实现方法进行了探讨。
So the theoretical basis is given for design, parameters choice and performances improvement of mechanical drive system.
为机械传动系统的设计、参数的选择以及性能的改进提供了理论依据。
It provides a theoretical basis for designing the mechanical seal ring equipment.
这为合理设计机械密封装置提供了理论依据。
Lagrange's equation in analytical mechanics is the basis of the mechanical vibration theory and the equation with dissipation function is important to this basis.
分析力学的拉格朗日方程是机械振动理论的基础,含耗散函数的拉格朗日方程又是这个基础的重要方面。
On the basis of analysis of previous mechanical models, a multi degree model with a distributed mass is established.
在分析研究现在常用力学模型的基础上,建立了多自由度分布质量模型。
Composing the fuzzy matrix is the basis of applying fuzzy mathematics in the mechanical design, such as fuzzy complex appraisal, fuzzy decision and fuzzy identification.
构造模糊矩阵是在机械设计中应用模糊数学的基础,模糊综合评判、模糊决策以及模糊识别等都需要构造和利用模糊矩阵。
On the basis of traditional bake out, bake-out method combining conventional bake-out with intermittent mechanical ventilation has been brought forward in this paper.
本研究中首先探讨了传统烘焙法在我国应用的可能性,并在此基础之上,提出了耦合间歇通风的新型烘焙法。
On the basis of currently existed concept designing method of mechanical product based on layer analysis of function, a kind of implementation method for fuzzy synthetic judgement was introduced.
在现有基于功能层次分析的机械产品概念设计方法的基础上,介绍了一种模糊综合评判实现方法。
This paper analyses chemical, mechanical and physical properties of ramie yarn fiber, expounds the basis of selecting sizing agent and points out the requirements and routes of the sizing process.
分析了苎麻纤维的化学及机械物理性能,阐述了浆料配方的依据,提出了苎麻纱的上浆要求及上浆工艺路线。
On the basis of elaborating the system of normal sort, the standardized situation of mechanical drawings, technical drawings and computer drawings are summarized and concluded comprehensively.
在阐述标准分类体系的基础上,全面归纳总结了《机械制图》、《技术制图》及《计算机绘图》标准的标准化状况。
On the basis of test research, unloading arc calculating model and arc beam mechanical model are set up, thick sand stratum's rupture law is exposed.
在实验研究的基础上,建立了“卸荷拱”计算模型及“拱梁”力学模型,初步分析了厚沙土层的破坏机理。
Through theoretical analyses and experiments, a tentative key technology formula of the PLA ting bath promoter for mechanical Zn plating is prepared as a basis for its further improvement.
经理论分析与实验研究,初步研制成功了机械镀锌的关键技术-镀液促进剂工艺配方,为进一步完善该配方的研究提供了基础。
As a kind of MEMS actuators, micro mechanical radio frequency switch is a representational structure of micromechanical technology, and basis of many micro mechanical components.
微机械射频开关作为MEMS执行器的一种,是微机械技术中的一类有代表性的结构,是很多微机械器件的基础。
On the basis of photoelectric effect, photoelectric slippage sensor converts the mechanical slippage into electric signal through optical signal in order to detect.
光电滑觉传感器是利用光电效应原理,将机械的滑动通过光信号转换为电信号加以检测。
On the basis of the present methods of compaction testing, the mechanical model of a vibrating roller-soil system was analyzed and its dynamic equation was established.
在现有压实检测技术的基础上,通过分析振动轮土壤系统的力学模型,建立了相应的运动方程。
Aside from the mechanical features of brakes under the cars, a test of the operation of the braking system has traditionally been mandatory on a daily basis.
除了检查车下制动系统的机械特性外,制动系统的工作状态也是传统的日常检查项目。
On the basis of the analysis of AFM's mechanical properties, the conclusion that the necessary conditions of AFM are abrasive flow media's viscoelastic property is reached.
在分析磨料流加工的力学特性基础上,得出了流体磨料的粘弹性是进行磨料流加工的必要条件。
On the basis of the analysis of AFM's mechanical properties, the conclusion that the necessary conditions of AFM are abrasive flow media's viscoelastic property is reached.
在分析磨料流加工的力学特性基础上,得出了流体磨料的粘弹性是进行磨料流加工的必要条件。
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