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经验平均
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  “经验平均”译为未确定词的双语例句
     TURP in 157 cases of benign prostatic hyperplasia(BPH),admitted in between Dec. 1985 and Dec.1987 were evaluated. The mean weight of the resected prostatic tissue was 23.49.The mean operative time was 76 minutes and no operative mortality has been met.
     本文总结1985~1987两年间施行的经尿道电切治疗前列腺增生症157例的临床经验,平均切除前列腺组织23.4克,平均手术时间76分钟,疗效满意,无死亡率。
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     An Empirical Expression of Mean Mass Depth ■ of X-Ray in EPMA
     X射线平均质量深度■的经验表达式
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     Empirical Equation for Mean Drop Size of Effervescent Atomizers
     气泡雾化喷嘴颗粒平均直径经验公式的拟合
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     For a sample of 38 sources we derive an average value of
     平均结果为
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     the experiences of learning;
     学生的经验;
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     and b was empirical parameter.
     b为经验常数。
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  empirical mean
The latter motion is made micro-canonical by first conditioning the path to be periodic, , and then further conditioning on the empirical mean-square or ``particle number'' .
      
The empirical mean monthly crop coefficient ranged between 0.56 and 0.83, indicating that ET in the entire area is always less than grass reference ET.
      
Dembo, Peres and Zeitouni (1996), following earlier work by Greven and den Hollander (1994) on the quenched case, have computed rough tail asymptotics for the empirical mean of the annealed RWRE.
      
The data have been used primarily to find empirical mean flux ratios at known IR wavelengths for the two photospheres of the eclipsing pair.
      
In particular we show that, under some regularity conditions, the empirical mean is asymptotically optimal with respect to a.s.
      
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The events of which geomagnetic indices 09s are all larger than L (L is a constant) are noticed. The number of times of the events in a year is taken to express the level of geomagnetic disturbance of the year. Six cases are studied:L=3, 4 and 5; each of them is subdivided into two subcases: recurrent events and general events.The method of the curve fitting with piecewise polynomials is used to derive an averaged experimental relationship f(R) between the number of times in a year Ck and the sunspot relative...

The events of which geomagnetic indices 09s are all larger than L (L is a constant) are noticed. The number of times of the events in a year is taken to express the level of geomagnetic disturbance of the year. Six cases are studied:L=3, 4 and 5; each of them is subdivided into two subcases: recurrent events and general events.The method of the curve fitting with piecewise polynomials is used to derive an averaged experimental relationship f(R) between the number of times in a year Ck and the sunspot relative number Rk (k is the order of the years from 1980 to 1979). Then, k = Ck - fk (fk = f(Rk)) are calculated. The result shows that: 1, for the 'solar cycles', each of which begins at he year four years before the minimum of the cor responding solar cycle, the signs of the average values of At alternate, ('sign alternating' fule +,-,+,-,......); 2. the 'sign alternating' rule oceurs in all the six subcases. It is mostly likely that the rule is caused by thereversal of the solar polar fields. After a further dividing of the 'cycles', every cycle has own dispersity (0) about its averaged A, A. The sequence of a shows a long term period o'f about 70 years.

以每年中地磁指数C9≥L事件的次数表示地磁扰动程度.研究下列六种情况:L=3、4和5,其中每一种又再分成重现的和一般的两类.用曲线分段拟合法求出地磁扰动年次数C_k与黑子相对数R_k之间的经验的平均关系f(R);计算出△_k=C_k-f_k,其中f_k≡f(R_k).计算结果表明: 1.用黑子相对数极小年之前四年作太阳活动周的起算点.对这种“活动周”求△_k=C_k-f_k的平均,得到各个(?).各“活动周”的(?)的符号依次正负交替. 2.由90年地磁扰动观测资料得来的符号交替规律出现在C9≥3、4和5时的各种情况.这很可能是由于太阳极区磁场符号依次交替变化造成的.进一步地划分时段后,各个“活动周”中△_k对于(?)的弥散程度σ不同.σ序列显现出约70年的长周期.

 
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