英:[rɒm]
美:[rɒm]
英:[rɒm]
美:[rɒm]
词根:rhomb
adj.rhombohedral 菱形的,[数] 斜方六面体的
rhombic 菱形的;斜方形的;正交的
rhomboidal 长斜方形的;偏菱形的
几何图形,“斜角等边平行四边形”,1570年代,来自法语 rhombe,源自拉丁语 rhombus “魔术师的圆圈”,也是一种鱼,在晚期拉丁语中也具有几何意义。这来自于希腊语 rhombos “圆形运动,旋转运动; 陀螺; 巫师使用的魔法车轮; 手鼓; ”也是“几何菱形”的名称,也是一种扁鱼的名称。
Watkins 认为这来自于 rhembesthai “旋转,旋转”,源自于 PIE *wrembh-, 来自 *werbh- “转动,扭曲,弯曲”(源头还包括古英语 weorpan “扔掉”),来自于根 *wer-(2)“转动,弯曲”(参见 versus)。但 Beekes 将 rhombos 与 rhembomai “四处走动,漫游,随意行动”联系起来,尽管这个词“晚得多”,没有明确的词源。
通常用于指任何菱形物体。相关: Rhombic。
菱面体
Noun Middle French rhombe, from Latin rhombus Combining form New Latin, from Greek rhombos
The first known use of rhomb was circa 1578
1 Two opposite corners of this rhomb contain three obtuse angles of 101°95'.
菱面体的两个对顶包含着三个101°95'的钝角。
2 The Red Bull logo with its sun, rhomb, bulls and font has given inspiration to the design.
与它的太阳,菱形红牛标志,公牛和字体给设计的启示。
3 Iceland spar is another example of the same kind: its molecules are built symmetrically round the line uniting the two blunt angles of the rhomb.
4 The basic form of this crystal is a rhomb.
此类晶体的基本形状为一菱面体.
5 Two opposite corners of this rhomb contain three obtuse angles of 101� � 55 '.
菱面体的两个对顶包含着三个101°55'的钝角.
6 The paper describes the effective measures taken to reduce off grade product with home scrap, rhomb and horizontal crack, and consequently improving the quality of the continuously casting product.
本文介绍了转炉炼钢厂通过采取有效措施,减少退废、脱方及横向裂纹废品,提高连铸坯质量。
7 Calcite cleaves readily in three directions producing a cleavage figure called a rhomb that looks like a cube squashed over toward one corner giving rise to the approximately 75° cleavage angles.
8 Recent development of theory and application of the RUSM (rhomb unit structural model) for amorphous alloys are reviewed.
综述了非晶态合金菱面体单元结构模型在理论及应用方面的最新进展。
9 By accidentally combining two rhombs in different positions, Huygens discovered the polarisation of light.
10 Geography.—Bohemia has the form of an irregular rhomb, of which the northernmost place, Buchberg, just above Hainspach, is at the same time the farthest north in the whole Austro-Hungarian monarchy.
11 The basic form of this crystal is a rhomb .
此类晶体的基本形状为一菱面体。
12 Circularly polarized light he obtained by means of a rhomb of glass, known as “Fresnel’s rhomb,” having obtuse angles of 126�, and acute angles of 54�.
13 If the length of the sides of a parallelogram are all equal and the angles are not right angles, as in Figure 68, it is called a rhomb, rhombus or diamond.
14 It seems sprinkled with small crystals, with rhombs of tile-red feldspath on a dark background like velvet or charcoal, except for one reddish protuberance of an unknown substance.
15 His success depended on his clearness of thought, which enabled him to perform the intellectual analysis which would never have occurred to most men, however often they had combined two rhombs in different positions.
16 History of the Inductive Sciences," observes that, "by the accidental placing of a rhomb of calcareous spar, upon a book or line, Bartholinus discovered the property of the double refraction of light.
17 The small pillow for her head must lie on the large pillow to form a rhomb; she then places her head exactly upon the diagonal of the rhomb.
18 Why did this pillow have to be placed so as to form a rhomb; and why did the girl's head have to rest exactly upon the diagonal?
19 Let this rhomb be cut along the plane b c; and the two severed surfaces, after having been polished, reunited by Canada balsam.
20 Leather furniture (bull), round furniture (sun), rhomb pattern in carpet and thin black lines (font) recurs in the office such as frames and furniture legs.
皮革家具(公牛),圆形家具(太阳),地毯和细黑线菱形图案(字体)出现在办公室,如框架和家具的腿。
2 菱面体
3 菱形六面体
5 斜方六面体