查询词典 precision

Company has first-class product testing equipment and production equipment, with the United Kingdom has 3 Units Laser Interferometer and clubs, one in Taiwan and USA OPTODYNE interferometer; Japan produced a high-precision spindle Balancing Instrument, etc.; Taiwan and the United States 1 16 meters-made CNC gantry milling machine; Taiwan and France one of domestic large-scale landing 13 meters milling Church; Japan OKUMA Horizontal Machining Center; many Units CNC gantry machining centers, gantry rail grinding machine, internal and external high-precision grinder, Horizontal Machining Center, vertical machining centers, jig borer, such as high-precision production equipment.

公司有一流的产品检测设备和生产设备，配备有3台英国的激光干涉仪和球杆仪、一台美国光动的干涉仪；一台日本生产的高精度主轴动平衡仪等；一台美国产的16米数控龙门铣床；一台法国产13米大型落地堂铣床；日本OKUMA卧式加工中心；多台数控龙门加工中心、龙门导轨磨床、高精度内外圆磨床、卧式加工中心、立式加工中心、坐标镗床等高精度的生产设备。

Days from the Japanese and British companies with domestic production technology and the characteristics of the development of high-speed automatic precision die-cutting machine, a high-precision machine paste, precision Slitter, automatic Park knife grinder and professional slice of Pai and other waste, integrated performance is better than Similar foreign products.

天英公司借鉴日本技术并结合国内生产的特点研制的自动精密高速模切机、高精度贴合机、精密分切机、自动园刀磨床以及专业的排废切片机等，综合性能指标优于国外同类产品。

Therefore, the precision of Cylinder decides the installation precision and knitting precision of Needle and further influence the quality of products.

织针是被安装在针筒中，由针筒带动进行针织运动，针筒的精度决定了织针的安装精度和针织精度，从而进一步影响产品的质量。

Products for the caliper, micrometer, dial indicator, dial gauge, lever scale thickness measurement tools, etc., as well as precision projector, instrument measuring microscopes, video measuring instrument, the second element altimeter, three-coordinate measuring instrument of precision measuring instruments, etc. mainly used for scientific research units, teaching the field, aerospace, automobile, shipbuilding, electronics, metal, plastic and many other fields in nanotechnology today, represented by technological innovation, it is necessary to adapt to the ever-changing industry needs, constantly drawing and the use of advanced science and technology, high-precision measuring instruments for scientific research in manufacturing has played a role as a bridge has been all over the world the user's trust and support.

产品为卡尺、千分尺、百分表、千分表、杠杆表、厚薄表等测量工具以及精密投影仪、工具测量显微镜、影像量测仪、二次元高度仪、三坐标测量仪等系统精密测量仪器，主要用于科研单位、教学领域、航空航天、汽车、造船、电子、五金、塑料等许多领域，在今天以纳米技术为代表的技术革新，要适应千变万化的产业界的需求，不断的吸取和运用先进的科学技术，高精密测量仪器在为科研制造等方面起到了桥梁作用，得到了全世界各用户的信赖和支持。

Precision and results are rounded to double precision when copied to double precision variables in RAM/cache.

普通 FP 算术和 SSE2 分级算术的最大不同是，FP 算术使用扩展的精度执行，当用 RAM/cache 复制到双精度变量时，结果也被

The construction process are multiple parameters (such as partial-top, arch axis and elevation changes, etc.) real-time monitoring system controlled by the large-span cable crane rigger arch beam, the system pegging Cable-Stayed deduction deduction for arch beam geometric precision and adjust successfully to a high-precision steel pipe arch-arch-long, concrete-filled steel tube ensures the integrity and stability, effective control of the construction process are arch axis geometric precision.

施工过程中多参数控制实时监测系统，采用大跨度的缆索吊机吊运拱肋梁段，斜拉扣挂体系扣定拱肋梁段并调整几何精度，成功地将钢管拱肋高精度合龙成拱，保证了钢管混凝土的整体性和稳定性，有效控制施工过程中拱轴线几何精度。

The system is constructed by the five important modules including the realizations about the tolerant classes based on tolerant relation in uncompleted information system, self-determining the variable precision value of variable precision rough sets model, influence of variable precision value on rules and coverage and "Gray" region.

主要包括在不完备信息系统下的相容类求解、变精度粗集模型下的变精度值自主式求解以及该模型下的规则和覆盖求解、Gray区域求解等。

Main job is to guarantee the scraping interaction and equipment on both sides of the friction surface or can obtain higher precision and accuracy, precision and shape accuracy, precision and contact transmission because of good lubrication, manual and repeatedly is worthy, large amounts of wind, time-consuming, scraping the time needed for different devices vary, such as boring slider and slide block wind profiling, between the match before measuring clearance between the original value, and then according to the technical requirement to measure the value of time and scraping scraping, then apply DanFen red on the slider, manual let slip on the slide seat back and forth, they do straight-line movement between full contact and friction, reoccupy scraper scraping friction creates the contact point, so repeatedly, until the technical requirements for the match, single within 2 days, must blow to the boring if all the time to work with wind, a half month is required.

刮削过程。刮削工作主要是为了保证设备相互接触并摩擦的两面间能获得较高的尺寸精度、形状精度、位置精度、接触精度、传动精度和良好的润滑，因是手工操作且需反复配刮，故工作量大，耗时较长，设备不同，刮削所需时间也各不相同，例如镗床上滑座与下滑座间的配刮，刮削前先测量出二者之间原有的间隙值，然后根据工艺要求测算出需刮削值及每次的刮削量，再将红丹粉涂于上滑座之上，手工让上滑座在下滑座上来回做直线运动，使它们之间充分接触和摩擦，再用刮刀刮削摩擦产生出的接触点，如此反复多次，直至技术要求范围之内，单此项配刮需2天左右，若对于整个镗床所有配刮工作的时间总和，则需半个月左右。

High-precision spherical components have been widely used in precision machinery and aerospace industry, and spherical curvature is one of determinant to the capability of optical components, and the measure of it is an important matter in the optical component manufacture. So the research of the high precision measurement of spherical curvature has important significance.

中文摘要高精度球面元件在精密机械和航天工业中的应用越来越广泛，在光学生产的加工制造过程中也大量需要对具有球面形状的透镜的曲率半径进行高精密测量的情况，因此，球面元件曲率半径的精密测量对高质量球面样板，光学系统的质量控制等方面具有重要的意义。

And this causes a frequency change Δf. The resonant point tracing algorithm describes how to detect Δf. So it can introduce a feedback frequencydifference -Δf through a closed loop to realize the resonant state o In the digitaldetection scenario, using staircase wave to replace saw tooth wave, it can overcome a lot of shortcomings in the analog system. The character of the staircase wave affects the detection precision directly. This thesis analyzes a high precision scenario producing a staircase waveform in detail. It can reduce the number of the bits in D/A converter greatly. This thesis proposes another method to improve the detection precision in case that the A/D converter has comparatively little number of bits, while this method will not increase the cost of the system greatly.

在谐振式光纤陀螺中，环形谐振腔的旋转使得谐振腔的谐振频率发生了变化，从而产生了一个与旋转速度成正比的频率变化值△f，谐振点跟踪算法描述了如何检测出△f，从而可以通过闭环在系统中引入反馈频差-△f，实现光路的谐振状态；在数字闭环检测方案中，用阶梯波作为反馈信号来代替锯齿波，可以克服原来模拟系统中锯齿波的很多缺点，阶梯波的性能直接影响着系统的测量精度，本论文详细分析了一种高精度阶梯波生成方案，使得所需D／A的位数大大降低；本文还分析了A／D转换器对系统测量精度的影响，提出了一种A／D转换器位数较少的情况下提高系统测量精度的措施，同时又不会增加太多的系统成本。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。