正弦量規 的英文怎麼說
中文拼音 [zhēngxiánliángguī]
正弦量規
英文
sine bar-
During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中，模擬結果表明，保壓時間是影響製件成形質量的關鍵因素之一，擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大，需進行參數之間的協調，只有當變形區內部始終維持準固態時，才能實現穩定的液-固擠壓成形過程；在變形場的模擬中，根據液態浸滲擠壓的成形特徵，選用了雙曲正弦剛-粘塑性有限元計算模型，研究了變形過程中應力應變場的變化規律，研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。The 1990s saw the fifth m & a frenzy, which was characterized by unprecedented scale and number. it was spearheaded by multinationals, a driving force behind the economic globalization, and was conducted throughout the world
但真正扣人心弦的還要是20世紀90年代以來，作為經濟全球化載體的跨國公司在全球經濟范圍內掀起的第五次企業並購狂潮，其規模之大、數量之多，令人目不暇接。A programmable dynamic target system is presented in this paper. on basis of analyzing the deficiency of traditional rotary target system, the significance and practicability of programmable dynamic target is proposed. through obtaining the corresponding relationship between target and theodolite, simulation model that aims at founding the laws of the moving target produce influence on theodolite was set up
根據靶標與光電經緯儀之間相對運動關系的數學模型建立了模擬模型，並應用模擬模型進行了大量的模擬試驗，對比了靶標做勻速運動和做正弦擺動對被檢測的光電經緯儀的跟蹤曲線產生的影響，證實了靶標在編程式控制制下按正弦規律進行擺動可以更好的檢測光電經緯儀的跟蹤性能。The performance of the electric vehicle is improved greatly in which the harmonic wave of output voltage, power loss and torque pulsation of the system are decreased by controlling the switch angles
它運用規則采樣法產生正弦脈寬調制波，通過開關角的控制抑制逆變器輸出電壓中的諧波分量，降低了電動機的損耗和轉矩脈動，使電動車的運行性能得到了較大改善。分享友人