均勻斷口 的英文怎麼說
中文拼音 [jūnyúnduànkǒu]
均勻斷口
英文
even fracture-
Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
在此基礎上模擬在冬夏兩季不同情況下,不同流速對熱管空氣預熱器壁面溫度的影響;然後對影響整個流場分佈的各種因素:包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬;最後提出在分流煙道轉彎處加裝導流板,並模擬加裝導流板后的流場分佈,得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈,以論證加裝導流板能達到流場均勻化的作用。Abstract : by means of metallographical examination and sem, the microstructure characteristics, macro - and microfractographs of the brittle broken wheel hull bolt of bj212 automobile have been studied. the results show that the thin - headed screw, with excessively deep carbonitriding layer and hardening layer, has less resistance to brittle fracture in the thin area of its head. at the root of the head connecting the stem, a tensile stress may emerge owing to the non - even quenching stress. those are the two reasons for low torque fracture of bolt
文摘:藉助金相、掃描電鏡等手段對低扭矩脆斷的bj212汽車輪殼螺栓的金相組織特徵,宏觀和微觀斷口形貌等進行了研究,結果表明:這種頭部薄的螺栓,滲層和淬透層過深,使頭部薄區脆斷抗力降低,在頭部與桿的根部,由於淬火應力不均勻導致根部產生拉應力,均是導致螺栓低扭矩斷裂的原因。Results it was found that 11 cases of mammoductal ectasis were characterized by ductal dilatation and smooth walls ; 3 cases of mammary - ductal mastitis showed ductal tree thinning and smooth walls ; 45 cases of ductoectasis complicated by infection showed irregular ductal dilatation ; 46 cases of intraductal papilloma showed ovoid or round filling defects and " cupping " abruption in one or more ducts ; 7 cases of ductal carcinoma showed irregular filling defects or abruption with ductal stenosis
結果單純性乳導管擴張癥11例,導管均勻擴張,管壁光滑;單純性乳導管炎3例,導管樹變細,管壁光整;乳導管擴張伴炎癥45例,導管樹不按比例擴張增粗;乳導管內乳頭狀瘤46例,圓形、類圓形充盈缺損,導管呈「杯口狀」中斷,多發乳頭狀瘤和乳頭狀瘤病表現為多支導管充盈缺損,導管節段性顯示,邊緣光滑;乳導管癌7例,乳導管不規則充盈缺損或中斷,導管壁僵硬。The suitable oil flux during the circulating of transformer could be defined according to the difference of temperature between the oil and wind in the inlet and the cooling capacity of the wind cooling system ; besides the oil flux can be determined by ultrasonic, it can be estimated whether the oil is flowing equably by determining the oil flux in the branch pipes ; reducing the oil flux of the oil pump could be realized by controlling to change its frequency, which could not only save the energy, reduce the wastage, but benefit the transformer ' s circulating safely
變壓器運行中可根據進口油溫和進口風溫之差、風冷卻器的冷卻容量來確定合適的油流量;油流量可以通過超聲波法進行測量,測量油的分管流量還可判斷油流的均勻情況;降低潛油泵流量可通過潛油泵的變頻控制來實現,不僅節能降耗,對變壓器的安全運行也有著重要意義。The dried material is put into the middle of shell, mixing by the rake teeth and the material shaft works back and forth. the indirect heating, equal agitation of rake teeth and grinding of breaking stick makes water in material evaporation. under the effect of vacuum system, the water in the dried material and apparent water are discharged and the vapor water is discharged from outlet of vacuum pump passing dry dust collector, wet dust collector and condenser
被乾燥物料從殼體上方正中間加入,在不斷正反轉動的耙的攪拌下,物料軸向來回走動,與殼體內壁接觸的表面不斷更新,受到蒸汽的間接加熱,耙的均勻攪拌,粉碎棒的粉碎,使物料內的水份氣化,在真空系統的作用下,使被乾燥物料內部水份和表面水份更有利的排出,氣化的水份經乾式除塵器濕式除塵器冷凝器,從真空泵出口處放空。Entropy of an image is to express the smoothness or homogeneity of the image. while computing in a local window, if there exist edges, the local image will not be homogenous, variation of the grayness will be sharp and the entropy obtained will be low. otherwise, the entropy will be high. given the threshold of entropy, it can be determined whether or not exist edges. because entropy operator is sensitive to noise, the effect is bad if it is directly used to detect edges. in view of the deficiency, the paper comes up with an edge detection method in which entropy operator is combined with noise removal. if the entropy computed is higher than the threshold, it will be necessary to determine whether it is caused by noise or by edges. thus edge detection and noise removal can be made at the same time. with this method satisfactory effect has been achieved by experimenting upon image with low ratio of signal to noise
圖像的熵用來刻劃圖像的平滑性或均勻性.在圖像的局部窗口中計算時,如果窗口中存在邊界,則窗口中的圖像不均勻,其灰度變化急劇,計算出的熵小;反之熵大.設定熵的閾值,即可判斷是否存在邊界.由於熵運算元對噪聲很敏感,直接用它進行邊界檢測,效果很差.文中針對這一缺陷,提出將熵運算元與去噪相結合的邊界檢測法,如果計算出的熵大於閾值,要判斷是噪聲的出現所引起,還是邊界的出現所引起,這樣,邊檢測邊界邊去噪聲.用該方法對信噪比較低的圖像進行實驗,得到了滿意的效果The purpose : breaker capacitor ( equalizing capacitor ) is connected in parallel to the port of high - voltage ac breaker, evens the voltages among ports during tripping
產品用途:斷路器電容器(均壓電容器)並聯連接于高壓交流斷路器的斷口上,使各斷口間的電壓在開斷時均勻。The circuit - breaker capacitors are shunted to the break of ac breaker to equalize while closing ( or breaking ) a circuit
斷路器電容器可並聯于工頻交流斷路器的斷口上,使各斷口間的電壓在開斷時達到均勻。分享友人