難免流產 的英文怎麼說
中文拼音 [nánmiǎnliúchǎn]
難免流產
英文
inevitable abortion- 難 : 難Ⅰ形容詞1 （做起來費事的） difficult; hard; troublesome 2 （不容易; 不大可能） hardly possible 3...
- 免 : Ⅰ動詞1 （去掉;除掉） dismiss; relieve; remove 2 （避免） avoid; escape; avert 3 （免去） excuse s...
- 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
- 產 : Ⅰ動詞1 （人或動物的幼體從母體中分離出來） give birth to; be delivered of; breed 2 （創造財富; 生...
- 難免 : hard to avoid; be booked for
- 流產 : 1 [醫學] abortion; amblosis; embryotocia; ectrosis; ectroma; efflux; miscarriage 2 （失敗） misca...
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But some problems with self - compacting concrete such as high slump loss and the difficulty of harmonizing the cohesiveness and the flowability should be solved. the theory of concrete mix design should also be perfected. in accordance with these problems, this thesis carry out such research works as follows to deal with them
然而，免振搗混凝土特別是高強超高強免振搗混凝土坍落度損失大，粘聚性和流動性難以統一以及易產生收縮裂紋的問題亟待解決；免振搗混凝土的配比設計理論也需要進一步地加以完善。Electrical machines are the most important and main drive devices in manufactures and our daily life. no other kinds of machines can replace them. they are widely used in the modem world. without electrical machines, the world would not be what it is today. when operating, they might have a lot of faults. if a main electrical machine is wrong in a work line, the whole line will stop, even the whole productive system. the phenomenon of the faults are so complicated and various that the maintance worker should be skillful and very experienced. the history of fault diagnosis and protection is as archaic as the machines themselves
電機是當今生產活動和日常生活中最主要的原動力和驅動裝置，它廣泛地應用於現代工業生產中，它們數量之多，地位之重要，幾乎沒有其他設備所能與之相比。電機在運行過程中，難免會出現這樣那樣的故障，假如一條生產線上的主要電機故障，必將造成生產線停工，甚至會影響整個大生產系統的工藝流程。電機的故障現象比較復雜，要求維修人員具有較高技術水平與經驗，才能發現和判斷。Important missing aspects are : turbulent flow, numerical discretization techniques specially the relevant and difficult topic of numerical treatment of advection and related numerical methods of solution, variable property fluids, boundary layers, stability, etc. rather, it focuses on more primitive and fundamental issues of numerical treatment of advective equation and proper formulation of initial boundary value ( ib vp ). numerical problems associated with advective dominated transport include spurious oscillation, numerical dispersion, peak clipping, and grid oriention. however, the key of numerical solution of three - dimensional advective problem is searching for a high - precision interpolating function, which can keep the computational stability and low damping
3 、針對三維純對流方程提出了實用的擬協調單元模式，並與線性插值模式和協調單元模式比較后表明，在物理量大梯度變化的情況下，線性插值模式會產生較大的數值阻尼，導致解的失真；協調單元模式具有極高的計算精度和良好的計算穩定性，還可較好地克服數值阻尼，但由於計及物理量的二階導數項，計算工作量大，邊界條件給定尚存在一定的困難；而擬協調單元模式不僅具有協調單元模式計算精度高的優點，還避免了物理量的二階導數項，可大大地減少計算工作量。
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