摩擦而生熱 的英文怎麼說
中文拼音 [mócāērshēngrè]
摩擦而生熱
英文
t warm by rubbing es with the hands-
When a meteoroid with a speed of tens of kilometers per second hits the earth s atmosphere, the friction with air will heat up the meteoroid. the high temperature will cause the surrounding atmosphere to glow, creating a bright streak of light called a
當流星體以每秒數十公里的速度進入地球大氣層，由於與空氣摩擦而產生高熱，高溫令流星體四周空氣發光，形成一條劃破天際的光跡，我們稱之為This paper develops a brain tumors heating curing instrument, which is based on the endogenetic field. it works by heating the ion and polity elements in the tumors organization, making the molecule twist and fracture. in that way, the temperature in the brain tumors is 3 ~ 7 c higher than the normal organization, and kills the brain tumor
本文研製了一種基於內生場的腦腫瘤射頻熱療儀，通過內生場加溫促使腫瘤組織的離子和極性分子在電磁場中發生分子扭動、摩擦，產生熱滯留，使得腫瘤組織的溫度高於周圍正常組織的3 ~ 7 ，從而燒死腦腫瘤細胞，達到安全治愈腫瘤的目的。The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面，因實際接觸面積小而導致接觸壓力很大，這樣使得熱流密度會很大，同時由於滑動時間很短，熱來不及傳導，最高溫度發生在摩擦表面，在垂直於摩擦面的方向有很大的溫度梯度，使得熱應力很大，且最大應力發生在表面，同時產生熱彈性變形，這種變形使得接觸區域內的壓力分佈發生變化，這種變化又反過來影響了接觸區域的溫度分佈。Environment temperature doesn t include the heat rising caused by abrasion heat generated by running
環境溫度不包括由於運轉而產生的摩擦熱使軸套溫度的升高。Main working principal is that the bottom scraper with low rotate speed impels materials to form circumfluence in the basin of machine, the impeller of rotor rotating with medium speed can not only add wallop to sand, but also can add shear force to the sand with scraper so that the sand can touch and scrub each other fast ; wind blasting is set to cool the hot sand, remove dust and strip the membrane so that fast speed of regeneration and top - grade used sand can be gained
主要工作原理是低速轉動的底刮板推動物料在機盆內形成環流，中速轉動的轉子葉片既對砂子施以沖擊力，又與刮板配合對砂子施以剪切力，使砂粒間快速接觸和強烈摩擦，圍圈設風帶鼓風使熱砂沸騰冷卻除塵脫膜，從而達到再生速度快，回用砂質量好的目的。Many kinds of the heat sources ( frictional heat, cutting heat, ambient temperature, etc ) in machining system produce a kind of temperature distribution. this temperature distribution induces thermal deformation between machine tools, tool, work - piece and work holding fixture. this deformation affects the relative displacement between the work piece and the cutter, causes the manufacturing errors, and influences the machining accuracy of the work - piece
在機械加工中，工藝系統在各種熱源（摩擦熱、切削熱、環境溫度、熱輻射等）的作用下，產生溫度場，致使機床、刀具、工件、夾具等產生熱變形，從而影響工件與刀具間的相對位移，造成加工誤差，進而影響零件的加工精度。2. inadequate rigidness of shaft 3. crooked driven wheel rims 4. diameter of the driven wheel is smaller than the width of the belt
打滑的傳動帶不能有效的轉動傳動輪，而所產生的摩擦引起傳動帶過熱。分享友人