骨头上切割痕迹的详细分析显示,它们与食肉动物留下的牙齿痕迹与爪痕存在本质的区别。
Detailed analysis of the cut marks on the bones show they differ substantially from tooth and claw marks that can be left by predators.
实验室工作人员和我们的内部金相实验室的设备也扩大到包括切割,抛光,腐蚀和金相分析。
Laboratory staff and our in-house metallographic laboratory equipment are also expanded to include cutting, polishing, corrosion and metallographic analysis.
对混凝土试块进行切割实验,并对分析同切割深度的不同形态所产生的原因。
Experiments of cutting concrete block were conducted and the reason for different fonns on different cutting depth was analyzed.
介绍了一种实用型高功率、高光束质量CO2激光焊接、切割机,分析其光学系统。
A practical high-power CO2 laser welding and cutting equipment with high beam quality was introduced, the optical system was analyzed.
对脆性材料的切割机制进行研究,建立切割冲蚀模型,分析受冲击区的应力。
The mechanism of cutting brittle materials was studied, the impact model was established and the stress of impacting area was analyzed.
从不同角度对我国水射流清洗切割的现状作了较为全面的分析。
The present situation of water jet technology of our country is analyzed comprehensively in various ways in this paper.
本文主要对铸铁水平连铸系统的切割装置和压断装置牵引运动进行了分析及研究。
This paper mainly performs the research and analysis on the cutting mechanism and pressing mechanism of the cast iron horizontal continuous caster.
通过对短纤维切割工作原理的分析,建立了化纤生产中切断刀锋利性能变化的数学模型。
Based on the analysis of the cutting principle of staple fibre, a mathematical model affecting the sharpness of cutter blades is established.
水平井生产管电化学切割动态分析及参数选择。
Dynamic analysis and parameters selection of electrochemical cutting of production pipe in horizontal hole.
对一种大功率IGBT逆变式空气等离子切割电源的主电路进行了原理分析与设计。
The paper analyzes and designs the main circuit of high-power IGBT inverted air plasma cutting power supply.
适用于科研院校、厂矿试验室试样切割后研磨磨光、试样光谱分析前准备工作。
They serve polishing after sample cutting and preparing before sample spectroscopic analysis in the laboratory of institutes, factories and mines.
在综合分析切割粒径、压降、效率和分股比数学模型的基础上,建立了旋液分离器的设计模型。
Based on synthetically analyzing models of reduced cut size, pressure drop, efficiency and flow split, the design model of hydrocyclone separators has been developed.
方法对72例腕部切割伤进行回顾分析。
Methods 72 cases of wrist cutting injury were analyzed retrospectively.
分析了激光切割筛管过程中常见的质量缺陷及产生的原因,并提出了工艺解决方案。
The paper analyzes the causes of common quality defects in slotted screen laser cutting, and advances preventive measures against the defects.
通过对装置中的玉米秸秆进行运动分析,找出了影响往复切割的因素。
The factors that influence reciprocating cutting quality are gained through motion analysis of straw.
采用实空间原子切割方法分析了阳离子和阴离子基团对光学性质的贡献。
A real space atom cutting method is adopted to analyze the respective contributions of the cation and anionic groups to optical response.
对数控切割机数控切割质量的影响因素进行了分析,提出了解决问题的方法。
This passage makes an analysis of the influence factor on numerical control incision and puts forward the problem-solving method.
指出当前激光切割存在的问题,对影响切断面质量的三个因素进行了分析与评述。
Problems existing in current laser cutting are pointed out. Three factors effecting the quality of section are analyzed and discussed.
理论分析和试验结果表明切割深度随着切割速度的减小而增加,随着激光功率的增加而增大。
Theoretical analysis and experimental results all indicate that cutting depth is increasing with the decreasing of cutting speed and increasing of laser power.
用光学显微镜观测和分析电火花线切割硅表面沿纵向分层择优腐蚀后的形貌;
The surface morphology after preferential corrosion along the vertical orientation was observed via an optical microscope.
分析了高速走丝线切割加工中影响加工精度与表面质量的主要因素,并针对这些原因分别给出各自有效的预防及处理方法。
The main factors that affect the machining precision and surface quality in high-speed wire cutting are analyzed. And the corresponding effective precautionary measures and handling methods are given.
并从动力学的观点,分析作物在割台上切割输送时受力状况。
The forces acting on crop transfer is analysed from viewpoint of kinetics.
通过对电火花线切割机床在加工过程中的特殊受力分析,给出步进电机的匹配选择方法。
This article introduced the matching selection of step motor for wire-cut electric discharge machine by analyzing the special stress of the machine.
通过对实验及现场实际切割参数的整理分析,得出切割质量的参数控制表,以供参考。
The various parameters in experiment and the real scene cutting were analyzed, and the conclusion of cutting quality parameter form was reached for reference only.
介绍了系统的工作原理及优势所在,并通过一系列试验及分析,初步掌握了该种切割技术的切割性能及影响因素。
The system work principle and its advantages were introduced, and the primary cutting performance and influence factors about this technology were studied by a series of tests.
本文从线面分析法在复杂的切割类组合体中的应用、在视图正确性检查中的应用等两个方面,讨论了线面分析法的实际应用。
This article discusses the practical applications of line and surface analysis method in complicated combination object of cutting type and in the inspection of view correctness.
对利用玻璃纤维网片作为增强基材的薄片切割砂轮强度进行了力学分析,给出了玻纤网片对薄片切割砂轮增强作用的定量计算公式。
This paper presents a mechanical analysis of the cutting grinding wheel strengthened with glassfiber meshes and the formula to calculate the strengthening effect of the glassfiber meshes.
通过试验,分析了被切割工件强度和厚度与切割速度之间的关系。
The relationships between the cutting speed and a incised workpiece of intension, thickness are analyzed.
对管-管相贯、K形接头相贯的切割实例进行了仿真分析,研究了割炬轨迹和相关参数的关系。
The real cutting examples about intersection of pipe-pipe and K type are simulated and analyzed, and the relationship between torch track and related parameters is studied.
对管-管相贯、K形接头相贯的切割实例进行了仿真分析,研究了割炬轨迹和相关参数的关系。
The real cutting examples about intersection of pipe-pipe and K type are simulated and analyzed, and the relationship between torch track and related parameters is studied.
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