嚙齒目的 的英文怎麼說
中文拼音 [nièchǐmùde]
嚙齒目的
英文
rodential-
According to wednesday ' s edition of the daily telegraph, the trouble began when the shop in dudley, central england, advertised a check - patterned fur - lined ferret cap and cape ensemble " in the famous burberry design "
據法新社10月12日報道,這次惹禍的商店為「雪貂世界」 ,是英國目前惟一一家銷售專為雪貂這種嚙齒類寵物設計的衣服的商家。They studied about 80, 000 fossils, predominately molars and premolars, to reveal when 132 different species of small rodents first arose ? and when the animals disappeared
他們研究了大約8萬塊化石.大多是臼齒和前臼齒的,以探明132個小型嚙齒目物種何時產生又何時消亡Do provide a safe area, protected from rodents of any type. garages often work well for this purpose, provided the temperatures do not get too low
為龜提供一個安全的地方,避開一些嚙齒動物。將冬眠箱放在車庫里會達到這個目的,要保證車庫的溫度不要太低。With a pair of degenerate primers designed according to the conserved region among the known cdna sequences of five rodents, a cdna fragment was generated by rt - pcr from total rna isolated from ovaries of lagurus lagurus
首先根據已發表的五種嚙齒目動物zp3cdna序列同源性分析結果設計特異性引物, rt - pcr擴增草原兔尾鼠zp3 ( lzp3 ) cdna保守序列。Firstly, the paper introduces the development and application of computer graphics & image technique, discusses the principle and method of cg and digital image processing, such as matrix of the graphic transformation, homogeneous reference frame, sampling and quantization of the image, file format of the image, template operation, etc. secondly the paper introduces the purpose and method of image enhancement processing, explains the each occasion of those methods such as threshold transformation, smoothing processing, sharpening processing, analyzes and contrasts the processing results of object image. thirdly, the paper introduces the method of mathematics morphologic, edge detection and thinning processing, attains character description of image and character dots of the contour. fourthly, the paper processes the coordinate transformation to character dots and basic splines fitting, imports correlative condition to devise meshing line and meshing track
本文首先介紹了計算機圖形圖像技術的發展與應用情況,對計算機圖形學和數字圖像處理的一些基本理論和方法如圖形變換矩陣、齊次坐標系、圖像采樣和量化、圖像文件格式、模板操作等內容進行了討論:然後對圖像增強處理的目的和方法進行了介紹,對諸如閥值變換、平滑處理、銳化處理等方法的應用場合進行了說明,並對實物圖像的處理結果進行了分析與比較;接下來介紹了數學形態學方法、對增強后的圖像進行邊緣檢測的方法和圖像的特徵描述方法,並獲取輪廓的特徵點:隨后對獲取的特徵點進行坐標變換,並進行b樣條曲線擬合,引入相關條件生成齒輪副的嚙合線及嚙合軌跡:最後引入等值線和區域填充表示方法,並以等值線和區域填充的形式對弧齒錐齒輪嚙合模擬的載荷分佈情況進行了直觀的表示。On the basis of relationship between meshing rigidity and noise and taking the modification, vibration deduction and noise dropping as the aims, the tooth profile modification was carried out on spur bevel gar by the use of revolving involute curve
摘要根據嚙合剛度和噪聲之間的關系,以修形減振降噪為目的,用旋轉漸開線曲線對直齒錐齒輪進行齒廓修形。As external gear pump has the most serious problem of flow pulsation, how to analyze the flow pulsation of gear pump and to optimize the construction parameters of gear pump is especially important for the design and performance improvement of gear pump
在液壓泵中,以外嚙合齒輪泵的流量脈動最大,因此對齒輪泵流量脈動進行分析,以減小流量脈動為目標,對齒輪泵的結構參數進行優化設計,從而為齒輪泵的設計及齒輪泵性能的提高提供理論基礎。The american children ' s ritual of hiding a lost tooth under a pillow stems from an old german tradition of placing a lost tooth in a mouse or rat hole so that when a new tooth grew in, it would possess the strong dental qualities of a rodent ' s tooth
美國的小孩子把脫落的牙齒藏到枕頭下的習俗來自一個古老的德國傳統,即把脫落的牙齒放在老鼠洞里,以便心得牙齒長出來時能夠像嚙齒目動物的牙齒那樣堅固。Gear power transmission is mainly through gear meshing to transmit power, realizing reducing and increasing speed or changing direction
齒輪傳動主要是通過齒輪的嚙合作用來傳遞動力及實現減速、增速或換向的目的。分享友人