男性墓穴中经常发现的随葬品——比如武器、石战斧和燧石刀，在座墓里都没发现。
None of the objects that usually accompany male burials a such as weapons, stone battle axes and flint knives a were found in the grave.
男性死者的随葬品有武器、锤子和燧石刀，还有一些食品和饮料，陪伴他们走向另一个世界。
The men would be buried alongside weapons, hammers and flint knives as well as several portions of food and drink to accompany them to the other side.
他们已经会使用工具，虽然我们的祖先还要再过大约200万年才开始制作最早的石刀、石斧等等。
They were primed for tool use, even though it would be another two million years or so before our ancestors began to fashion the first stone blades, choppers and axes.
“多样化的打火石刀片组合被生产并且使用，”特拉维夫的科学家在描述他们在山洞中找到的工具时说道。
'a diversified assemblage of flint blades was manufactured and used,' the Tel Aviv scientists wrote, describing the tools they found in the cave.
史前人用打火石刀。
大型双孔石刀发现于临海城关市府大院后之山腰间。
Large Stone Blades with Twin Holes Discovered on the hillside behind the municipal government compound in Chengguan Linhai.
超精密金刚石刀具的两个基本精度要求是刀刃轮廓精度和刃口半径。
The two basic precision requirements for ultra precision diamond cutting tool are the precision of outline and edge radius.
石刀是常见的生产工具之一，能够一定程度反映古代人类的社会生产活动。
The stone knife is one of familiar implements of productions, can the certain degree reflect the ancient mankind's social production.
对于采用聚晶金刚石刀具加工硅铝合金时产生积屑瘤的一些规律进行了研究。
A study on the trends of silver white chip formation when cutting the silicon-aluminium alloy parts with a polymerized crystal diamond cutter is carried out.
尼罗河谷地的新石器时代文化遗址中发现了大量石刀、石簇、石斧、石镰等等。
A lot of stone knives, clusters, axes, sickles have been unearthed in the cultural relics of Neolithic age in the Nile River valley.
研磨机床的振动是影响金刚石刀具机械研磨质量的重要因素，尤其在精密研磨工序。
Vibration of lapping machine is an important influencing factor on the lapping quality of diamond cutting tools in mechanical lapping, especially in the precision lapping process.
给出了金刚石刀具钝圆半径与精密玻璃光栅和超精密抛光陶瓷的轮廓形貌的测量结果。
The paper shows the measuring results of blunt radius of diamond tool, precision glass grating and profile and topography of ultra-precision polished ceramics.
在两个女孩子看来，那刀给火把光一照，似乎不是钢刀而是石刀，而且形状又古怪又可恶。
It looked to the children, when the gleam of the torchlight fell on it, as if the knife were made of stone, not of steel, and it was of a strange and evil shape.
他又用麋鹿的皮蒙在土缶上作成鼓敲打起来，还重击轻打石刀石斧，模仿天帝玉磬的声音。
He put deer skin on the fou (an earthen pot with a big body and a small mouth) to make a drum, and imitated the God's jade qing by beating stone knives and axes heavily or lightly.
为减轻金刚石刀具的磨损，提高工件表面加工质量，采用超声振动的方法切削不锈钢零件。
Ultrasonic vibration is applied to diamond turning of stainless steel in order to decrease diamond tool wear and improve the surface quality of the workpieces.
本文介绍了单晶金刚石刀具研磨方向的选择，同时简单的介绍了单晶金刚石刀具的研磨方法。
In this paper selection of grinding direction of diamond is studied, and the grinding method of single crystal diamond cutters is introduced.
为了考察单晶金刚石的研磨效率，试验采用陶瓷结合剂金刚石砂轮对单晶金刚石刀片进行研磨。
A single crystal diamond was ground with vitrified diamond wheel to research on the grinding efficiency.
补偿模式：在金刚石刀具补偿进行期间，刀具中心轨迹始终偏离编程轨迹一个刀具半径值的距离。
Compensation mode: during the cutting tool compensation cutter center track always deviated from the distance of a tool radius value programming track.
薄型金刚石圆锯片的结构设计主要包括锯片基体与金刚石刀头的设计，在文章中对两者均作了论述。
The structural design of thin type circular diamond sawblade mainly included designing of sawblade core and diamond segment, both of them were discussed in this paper.
聚晶金刚石刀具在加工过程中的磨损机理主要表现为具有疲劳磨损特征的沿晶断裂及局部解理断裂。
The cutting tool was characterized by intercrystalline fracture attributed to fatigue and partial cleavage fracture in the machining process.
介绍了单晶金刚石刀具的研磨方法，重点分析了影响研磨质量的各种因素，并提出了相应的工艺措施。
The grinding method for single crystal diamond cutters is introduced. The influence factors on the grinding quality are analyzed emphatically, and the corresponding techniques are presented.
金刚石刀具(包括薄膜涂层刀具)，主要用于各种非金属材料及有色金属材料的车、铣、镗、钻等工序。
Diamond tool (including thin film coated tools), mainly used in all kinds of non-metal materials and non-ferrous metal materials car, milling, boring, drilling and other processes.
在单晶金刚石刀具的研磨过程中，研磨压力是一个影响研磨效率、表面质量、刃口质量等的关键工艺参数。
The grinding pressure is a key parameter to influence the grinding efficiency, surface quality and cutting edge quality in the monocrystal diamond tool grinding.
本文从切削力、表面粗糙度、表面残余应力几个方面，研究了金刚石刀具刃口修锐度对切削表面质量的影响。
In this paper, the influence of diamond tool sharpness on machined surface quality was studied from the viewpoints of the cutting force, surface roughness and residual stress.
他们的祖先最初来到这儿开采黑曜石，欧洲的第一把石刀就是黑曜石制成的。自此以后，他们历经干旱、火山灰、熔岩和地震。
Their ancestors originally came to mine obsidian (for Europe's first knives) but, since then, they have been surviving droughts, ash, lava bombs and earthquakes.
他们的祖先最初来到这儿开采黑曜石，欧洲的第一把石刀就是黑曜石制成的。自此以后，他们历经干旱、火山灰、熔岩和地震。
Their ancestors originally came to mine obsidian (for Europe's first knives) but, since then, they have been surviving droughts, ash, lava bombs and earthquakes.
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