撓環面 的英文怎麼說
中文拼音 [náohuánmiàn]
撓環面
英文
twisted torus-
( 5 ) as torsion is increased, the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1
（ 5 ）增大撓率，逆時針方向旋轉的一二次渦和流函數的負值區域增大，軸向速度最大值的位置按逆時針（環形截面）或順時針（圓截面）方向旋轉，摩擦系數比最終趨向於1 。Specimens ’ cracking load under dead - load, fatigue failure characteristic, fatigue life, deflection of span - centre, fatigue flexural rigidity, maximal crack width, development of cracks and strain of concrete and steel bars have been investigated. the influence of fatigue cycle characteristic, ratio of reinforcement, kinds of aggregate and concrete compressive strength on the specimens ’ fatigue behavior has been also investigated
對試件的靜載下開裂荷載、疲勞破壞特徵、疲勞壽命、疲勞荷載作用下的跨中撓度、截面疲勞抗彎剛度、裂縫開展情況及最大裂縫寬度、鋼筋及混凝土在循環荷載作用下應變等內容進行了研究，分析了疲勞循環特徵值、縱筋配筋率、骨料種類、混凝土抗壓強度等因素對試件疲勞性能的影響。These outstanding remnant specimens, strong and beautiful, are widely respected as champion trees by urban dwellers. they bring ecological, amenity and cultural values, make significant contributions to cityscape, and furnish living landmarks that have witnessed the history of human tenure in cities. champion trees are notable because so few urban trees can excel under various extensive and acute urban stresses
這一小撮不屈不撓地生存下來的樹木，其出類拔萃、挺拔雄偉的姿態理所當然地成為城市人眼中備受尊崇的冠軍樹，為人們帶來生態、環境及文化價值，為改善城市面貌帶來重大貢獻，更作為見證人類城市變遷歷史的活地標。
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