弦紋 的英文怎麼說
中文拼音 [xiánwén]-
The most general color is red, yellow and white, decorative pattern has grain of bowstring grain, belt, big dot grain, curve grain and anise star grain
最普遍的顏色是紅色、黃色和白色，花紋有弦紋、帶紋、大圓點紋，弧線紋和八角星紋等。The crack eventually caused the chord to fracture.
裂紋最終致使弦桿斷裂。An instrument with a usually pear - shaped body and a fretted neck over which several pairs of strings are stretched
常是梨形琴身，在有格紋的琴頸上裝有幾組供挑撥的琴弦。Two facial ornament line the same, internal and external every one week such as line such as string such as reason in ancient piece of jade, interior decorations all over to rank the neat valley line, slick and sly like the pearl, the workmanship is exquisite and incomparable, it is said, is it divide officer rank of nobility level to come with line decorations of ancient piece of jade ancient times, to adorn the valley line viscount, to adorn line pu baron
兩面飾紋相同，璧之內外緣各圈弦紋一周，內飾滿排整的谷紋，圓滑如珠，作工精緻無比，據說，古代曾以璧的紋飾來劃分官爵高低，子爵的飾谷紋，男爵的飾蒲紋。在璧的孔內鏤雕一蟠，造型生動。It also shows white crescents separating the grey from the black on the mid - primaries, apparently not shown by ring - billed
另外，問題鳥的中間幾根初級飛羽有弦月狀白色班紋分隔其黑色和灰色部分，明顯地環頸鷗不會有此特徵。Thirdly, similarity matrix, dissimilarity matrix or similarity table are established based on the n - strong peaks, the overlap rate of common peaks and the cosine / sine of vectors " angle which are derived from the fingerprint chromatograms of samples. and based on these data model, clustering research has been done by k - means algorithm, biggest tree in fuzzy clustering and improved cobweb algorithm, where different results have been gained. by comparing, cobweb algorithm is the best
本次研究利用n強峰、共有峰的重疊率和向量夾角正餘弦值對樣品色譜指紋圖譜分別建立了相似度矩陣、相異性矩陣或相似度表，以這些數據模型為基礎，分別用了k -平均、模糊聚類的最大樹法和改進的cobweb法進行了聚類研究，得到了不同的效果。The sinusoidal gray fringes are simulated by computer and projected on the object by the liquid - crystal light valve in this method, in with the phase - shifting is controlled by computer. then the deformed fringes modulated by object is collected by ccd camera, so optical 3 - d phase measurement for large - scale object can be realized
（ b ）針對目前大尺寸物體光學位相測量輪廓中存在的問題，提出一種用液晶光閥把模擬正弦分佈及多幅有一定相移量的灰度條紋投影到大尺寸三維物體上，通過控制計算機在同一位置進行窗口變換，直接實現相移，進行物體的光學位相三維面形測量。A permanent magnet synchronous motor is selected so that the system could work excellently. multiform measures are taken to weakening the torque ripple, such as adopting stator - flume, choosing right ratio of magnet - width and slot - width, and programming properly. a permanent magnet synchronous motor cad software is worked out for predigesting the design of the motor
力矩脈動是衡量交流伺服系統性能優劣的重要指標，為達到理想的控制效果，系統採用正弦波驅動的稀土永磁同步電動機作為執行元件，電機本體的設計綜合採用定子斜槽、將轉子永磁體連續移位、合理選擇永磁體寬度和齒槽寬度比等方法，基本消除了齒槽轉矩；對于紋波轉矩，系統採用軟體的方式加以削弱和補償。Analysis on effect of various factors on moir 233 ; information
由正弦結構圖產生的莫爾條紋各影響因素分析Stripes sometimes noticeable on flatsawn face. easily worked. sliced veneer - flooring and wall. sawn lumber - furniture, door - sills and flooring
在木材弦切面可見條紋。平切單板-地板、壁板。板材- ?俱、門檻、地板。Methods : the similarities of honeysuckle chromatography fingerprints were calculated by the methods of correlation coefficients and angle cosine with or without retention time correction and signal standardization
方法：對金銀花藥材指紋圖譜進行保留時間和峰面積校正，分別使用相關系數法和夾角餘弦法計算處理前後圖譜間相似度。The fatigue crack propagation testing of mdyb - 3 pmma material under constant amplitude cyclic loading has been made. the effect of different stress ratios, room temperatures and loading frequencies were investigated in terms of the paris law presentations of the testing results
本文研究了在恆幅正弦載荷下溫度、頻率和應力比對疲勞裂紋擴展的影響，給出溫度和頻率影響的定性分析，和應力比影響的定量分析，為建立疲勞裂紋擴展模型打下了基礎。7. ebony : origin of african. it is mostly black with occasional grey streaks, fine texture and a straight to wavy grain
木材特性：具有較強的光澤，略具蠟質感，弦切面呈山形花紋。The method finds the singular points according to their neighbor area characters, and then orients the reference point. after that, a staged fingerprint - matching algorithm based on structural model is proposed
（ 3 ）在指紋匹配部分，本文提出了基於塊方向及其正弦分量的參考點定位演算法和基於結構特徵的分段式指紋匹配演算法。分享友人