|
grating 音标拼音: [gr'etɪŋ] n. 光栅,摩擦,摩擦声
a. 刺耳的 光栅,摩擦,摩擦声刺耳的 grating adj 1: unpleasantly harsh or grating in sound; " a gravelly voice" [ synonym: { grating}, { gravelly}, { rasping}, { raspy}, { rough}, { scratchy}] n 1: a barrier that has parallel or crossed bars blocking a passage but admitting air [ synonym: { grate}, { grating}] 2: a frame of iron bars to hold a fire [ synonym: { grate}, { grating}] 3: optical device consisting of a surface with many parallel grooves in it; disperses a beam of light ( or other electromagnetic radiation) into its wavelengths to produce its spectrum [ synonym: { diffraction grating}, { grating}] Grate \ Grate\, v. t. [ imp. & p. p. { Grated}; p. pr. & vb. n. { Grating}.] To furnish with grates; to protect with a grating or crossbars; as, to grate a window. [ 1913 Webster]
Grating \ Grat" ing\, n. [ See 2d Grate.] 1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent. [ 1913 Webster] 2. ( Optics) A system of close equidistant parallel lines or bars, esp. lines ruled on a polished surface, used for producing spectra by diffraction; -- called also { diffraction grating}. Note: Gratings have been made with over 40, 000 such lines to the inch, but those with a somewhat smaller number give the best definition. They are used, e. g., to produce monochromatic light for use in optical instruments such as spectrophotometers. [ Webster 1913 Suppl.] 3. pl. ( Naut.) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats. [ 1913 Webster]
Grating \ Grat" ing\, a. [ See { Grate} to rub harshy.] That grates; making a harsh sound; harsh. -- { Grat" ing* ly}, adv. [ 1913 Webster]
Grating \ Grat" ing\, n. A harsh sound caused by attrition. [ 1913 Webster] 208 Moby Thesaurus words for " grating": abrasion, absonant, ajar, andiron, annoying, antagonistic, antipathetic, arabesque, at cross- purposes, at loggerheads, at odds, at variance, at war, atomization, atonal, attrition, basketry, basketwork, beating, bolter, brecciation, cacophonous, cancellation, chafing, chain, clashing, coal tongs, colander, comminution, conflicting, confused, contradictory, contrary, cracked, crane, cranky, creaking, croaking, crook, cross, cross- hatching, crossing- out, crumbling, crushing, damper, detrition, diaphonic, differing, disaccordant, disagreeable, disagreeing, disconsonant, discordant, discrepant, disharmonic, disharmonious, disintegration, disproportionate, dissident, dissonant, divergent, dry, filigree, fire hook, fire tongs, firedog, flat, fragmentation, fret, fretting, fretwork, galling, granulation, granulization, grate, grid, griddle, gridiron, grill, grille, griller, grillwork, grinding, gritty, hachure, harsh, hatching, hoarse, hostile, immelodious, immiscible, inaccordant, incompatible, inharmonic, inharmonious, interlacement, intertexture, intertwinement, irksome, irritant, irritating, irritative, jangling, jangly, jarring, jostling, lace, lacery, lacework, lacing, lattice, latticework, levigation, lifter, mashing, mesh, meshes, meshwork, musicless, negative, nerve- jangling, nerve- racking, nerve- rending, nerve- shaking, nerve- trying, net, netting, network, nonmelodious, off, off- key, off- tone, offensive, out of accord, out of pitch, out of tone, out of tune, out of whack, piercing, plexure, plexus, poker, pothook, pounding, powdering, raddle, rasping, raspy, raucous, repugnant, reticle, reticulation, reticule, reticulum, riddle, rough, salamander, scraping, scrapy, scratching, scratchy, screeching, screen, screening, sharp, shredding, shrill, sieve, sifter, smashing, sorter, sour, spit, squawking, squeaky, stinging, strident, stridulous, texture, tissue, tongs, tracery, trellis, trelliswork, tripod, trituration, trivet, tuneless, turnspit, uncongenial, unharmonious, unmelodious, unmusical, untunable, untuned, untuneful, variant, vexatious, warring, wattle, weave, weaving, web, webbing, webwork, weft, wicker, wickerwork
|
安装中文字典英文字典查询工具!
中文字典英文字典工具:
英文字典中文字典相关资料:
- 精冲（Fine Blanking）专业知识知多少 lt;全是干货 gt;
在冲裁凸模压入材料的同时，利用顶出器的 反压力，将材料压紧，加之利用极小间隙与带圆角的凹模刃口消除了应力集中，从而使剪切区内的金属处于 三向压应力 状态，消除了该区内的拉应力，提高了材料的塑性，从根本上防止了普通冲裁中出现的弯曲、拉伸、撕裂现象，使材料沿着凹模的刃边形状，呈纯剪切的形式被冲裁成零件，从而获得高质量的光洁、平整的剪切面。
- 精冲模具原理 - 百度文库
精冲模具是该工艺中非常关键的一个环节，它的设计与制造必须精确到毫米级别，以保证精冲件成形的质量与精度。 下面我们就来详细了解一下精冲模具的原理。 一、什么是精冲模具
- 精冲模工艺及技 - gdtaihan. cn
方法。由它生产的零件也具有不同的质量特征。特别是在精冲与 冷成型(如弯曲、拉深、翻边、镦挤、压沉孔、半冲孔和挤压等)加工工艺相结合后,精冲零件 已有可能在许多领域(如汽车、摩托车、电子工业等),取代以前由普冲、机加工、锻造、铸造 和粉末冶金加工
- 精冲模具设计核心要点（附关键参数与执行标准） - 搜狐
发布于：山西省 精冲模具设计核心要点（附关键参数与执行标准）一、精冲模具三大核心系统 精冲本质：三向压力状态下的纯剪切（压边力+反压力+冲裁力） 二、关键参数黄金矩阵 注：τ为材料抗剪强度（304不锈钢≈650MPa，磷青铜≈350MPa） 三、核心结构设计
- 第二章 冲裁工艺及冲裁模设计
它能在一次冲压行程中获得比普通冲裁零件尺寸精度高、冲裁面光洁、翘曲小且互换性好的优质冲压零件,并以较低的成本达到产品质量的改善。 为了能更好地应用精冲技术,必须充分了解和掌握其基本要素: 精冲机床、精冲模具、精冲材料、精冲工艺及精冲润滑等。
- 【科普】精冲原理3D动画演示+实际生产过程
精冲属于无削加工技术，是在普通冲压技术基础上发展起来的一种精密冲裁方法。 这种加工方法的成果是冲件的冲切面在其整个料厚上没有裂纹和撕裂。 此外，还能够达到最严的尺寸精度和平直度公差。 视频1： 精冲原理3D动画演示 视频2：
- 精冲模具的结构分析与发展 - 道客巴巴
精冲件的剪切面没有撕裂。 它具有非常精确的尺寸，其剪切面在每毫米长度上仅倾斜O．0026毫米【l】。 精冲件的上下表面非常平整，毛刺很小。 因此，只需经过去毛刺工艺，精冲件即可装配使用。 此外，精冲
- 精冲模具的结构分析与发展. pdf
精冲模具的结构分析与发展 pdf,精冲模具的结构分析与发展 郑鹏飞涂光祺 中国国家机械工业局北京机电研究所 中国北京市海淀区学清路18号 摘要 本文对各类精冲模具的结构特点进行了分析与讨论，并对这些模具在使用上的优缺点进行了详 细的论述。
- 精冲：工具、工艺和优势 - ProleanTech
精冲裁采用精确的模具和冲头间隙，公差严格控制在±0 0003-0 002英寸以内，用于生产齿轮、离合器片、飞机配件和高精度支架等精密零件和组件。 不比 钣金冲裁精冲裁是一种精密剪切切割技术，可生产可直接装配的零件。 它对冲裁后的零件几乎不需要后处理。
- 精冲原理3D动画演示_哔哩哔哩_bilibili
手把手带助理从识图到施工图深化，全程纯干货~，汽车铸件模具设计试听案例：拉延上模漏气孔设计讲解学习，第六小节，UG产品烂面解决方法，UG分模三种方法与思路，UG拆分体的3种小技巧，UG中如何切出这种三角，UG移动命令必学技巧，UG产品找平面的方法
|
|