critical ma 中文意思是什麼

critical ma 解釋
臨界質量
  • critical : adj 1 批判的，批評的；（在某方面）有鑒定力的 （in）。2 吹毛求疵的；愛挑剔別人的 （of about）。3 ...
  • ma : 1. Minnesota. 2. 【化學】元素 masurium 的符號。n. 〈兒口〉媽〈mamma 之略〉。 ma and pa 〈美國〉夫妻店，家庭經營的小店鋪。
  1. Many scholars and studies of records of the historican ( written by si ma - qian of the han dynasty ) point out that an account of the oppressive officials evinces the strong affinity to the people and aslo shows the satirical and critical views of si ma - qian

    摘要許多《史記》研究者和研究資料都認為《酷吏列傳》表現了司馬遷強烈的人民性和諷刺批判精神，其實這種認識是非常簡單和片面的。
  2. The full - coupled method developed with damage mechanics and the finite element analysis is performed on calculation of fatigue damage accumulation of the critical welded components in the tsing ma bridge

    這種偏於安全的誤差，用於結構的疲勞設計是合適的，但對于在役結構疲勞損傷累積的準確評估卻是不利的。
  3. Firstly, the analyses on the dynamical response of the tsing ma bridge ( tmb ) under traffic loading are performed on the basis of the three dimensional finite element model of the full - scale structure of the bridge, and some regions critical to fatigue damage are determined from the result of the dynamical response. the hot spot stress approach is usually adopted in the fatigue design and analysis of tubular welded joints. to apply the hot spot stress approach for the fatigue evaluation of long - span suspension bridges, the fem is further used to determine the hot spot stress of the critical fatigue locations

    首先，在青馬大橋三維有限元模型和整體動力響應分析計算的基礎上進一步進行關鍵疲勞構件的局部熱點應力分析，對疲勞危險部位處的焊接構件建立三維有限元模型，施加符合橋梁實際工況的載荷與位移邊界條件，進行局部熱點應力分析，確定這些焊接構件內的名義應力和相鄰焊接區域內熱點應力之間的關系，得到相應的應力集中系數。
  4. Their causes, mechanisms, poss ible effects and criticality of some critical potential hazards were analyzed an d identified in more details with considerations of the historic accidents of ma nned spaceflight. and the compensating provisions and preventive measures for eac h hazard were discussed

    文章結合國外載人航天經驗教訓，對其中幾種主要危險源的產生原因、可能導致的後果以及應採取的預防措施進行了詳細分析討論。
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