查询词典 mean business

Based on the existence of the " mean point s"in Differential mean value Theorem,This paper futher studies the problem of the number of the " mean point s" in Differential mean value Theorem.

在微分中值定理"中值点"存在的基础上，进一步研究微分中值定理"中值点"的个数问题。

We gain the distributing instance as a whole by the spatial analyse of the daily、 mensal and annual precipitation.Then, we adopt mean error、 mean absolute error、 mean relative error、 and the root mean squared interpolation error and the correlative coefficient as the determinant standard of interpolation effect. The results show that the mensal precipitation effect of SIA is the best, and the daily precipitation effect is worse reversely.

然后，对年降水量、月降水量以及日降水量的SIA结果采用平均误差、平均绝对误差、平均相对误差、插值平均误差平方和的平方根误差以及相关系数作为判定插值效果的标准，并得到以下结果：月降水量的SIA效果最好，日降水的相对较差。

Meanwhile, 2-D spectrum and the corresponding parameters of irregular wave transformation (predominant wave direction and mean wave direction, peak frequency and peak spectrum density, spectrum width, mean period, mean wave length, mean wave crest length and 3-D index and so on)、 1-D frequency spectrum and the corresponding parameters and numerical results of wave height、 wave direction of regular wave transformation are offered.

提供不规则波传播变形二维谱及其谱参数(主波向及平均波向、峰频及谱峰值、谱宽度、平均周期、平均波长、平均波峰长度及三维性指标等等)，不规则波一维频率谱及其谱参数和规则波变形的波高、波向模拟值。

This paper propounds an improved kinetic model of monthly potential evapotranspiration ETi:ETi=where i is a number of month, Pi the monthly mean atmospheric pressure,ti the monthly mean air temperature, di the number of days in a month,Ui the monthly mean wind velocity measured at height 10-12m, woi the saturated water vapour pressure at ti,and hi the monthly mean relative humidity.

本文提出了关于月可能蒸散量ETi动力学模型的改进形式：式中，i是月份的编号，Pi是月平均气压，ti是月平均气温，di是月的天数，Ui是在10─12m高度处观测的月平均风速，woi是在温度为ti时的饱和水汽压，而hi是月平均相对湿度。

The results show that:①The mean length of Ligularia is the biggest, and the mean length of Ajania, Anaphalis and Artemisia is the smallest; the mean width of Aster and Ligularia is bigger than that of others; the mean length/width have lots of differences, the biggest being Senecio, and the smallest Artemisia.

①橐吾属连萼瘦果平均长度最大，亚菊属、香青属和蒿属连萼瘦果平均长度较小；紫菀属和橐吾属的平均宽度相对较大；长／宽的平均值在各属间相差很大，最大的为千里光属，蒿属最小。

The average number of anterior lymph nodes was 3.83±1.79. Their blood supply originated from the branches of lateral thoracic artery, whose mean diameter and length were 1.04±0.42 and 29.5±12.25 respectively.(3) The average number of posterior lymph node was 2.38±0.97. Their blood supply originated from the lymph node branch of subscapular artery, whose length and mean diameter were respectively 18.78±8.67 and 0.78±0.32.(4) The average number of central lymph nodes was 4.05±1.95. Their blood supply originated from axillary artery whose mean diameter was less than 1mm.(5) The average number of apical lymph nodes was 2.82±1.96. Their blood supply originated from the branches of thoracoacromial artery whose mean diameter was 0.79±0.29mm and length was 10.60±4.13mm.

结果 外侧群淋巴结数量为(3.16±1.72)个，血供属多源性且不恒定；前群淋巴结数量为(3.83±1.79)个，营养血管主要为胸外侧动脉的分支，其外径(1.04±0.42)mm，干长(29.5±12.25)mm；后群淋巴结数量为(2.38±0.97)个，血管来源于肩胛下动脉的淋巴结支，其外径为(0.78±0.32)mm，干长(18.78±8.67)mm；中央群淋巴结数量为(4.05±1.95)个，血管来源于腋动脉的分支，其外径均在1mm以下，干长20mm以上；尖群淋巴结数量为(2.82±1.96)个，营养血管为胸肩峰动脉的分支，外径为(0.79±0.29)mm，干长(10.60±4.13)mm。

66 patients with AIS and rib hump underwent instrumentation and thoracoplasty from 1999 to 2004. Of these cases, there were 43 girls with the mean age of 15.62 years old and mean Cobb's angle of 58.86° and 23 hoys with the mean age of 16.83 years old and the mean Cobb's angle of 60.87°.

1999年至2004年我院共行脊柱矫形内固定融合术及胸廓成形术治疗66例AIS患者，其中女性患者43例，平均年龄15.62岁，平均Cobb角58.86°；男性患者23例，平均年龄16.83岁，平均Cobb角60.87°。

objective to evaluate the role of mr perfusion weighted imaging in preoperation diagnosis of meningiomas.methods mr perfusion weighted images was performed in 47 patients with meningiomas followed by conventional imaging.results the mean rcbv values of angioblastic was the highest in the parenchyma of tumor.the mean rcbv values of malignant group was the lowest.the biggest mean rcbv values among different type meningiomas was statistically significant.the biggest mean rcbv values between benign and malignant group meningiomas was statistically significant,but not in the peri-tumor edema.conclusion the rcbv values were useful in the preoperative differentiation diagnosis of different types of meningiomas.those in the peri-tumor edema were useless in the preoperative differentiation diagnosis of different types of meningiomas.

目的 探讨磁共振灌注成像技术对脑膜瘤术前分型及良恶性鉴别的临床应用价值。方法对47例脑膜瘤病人行mr灌注成像检查，对5种亚型的良性脑膜瘤的mr灌注成像进行分析，并与非典型性及恶性脑膜瘤进行比较。结果血管瘤型脑膜瘤实质部分的rcbv值均数最高，恶性组脑膜瘤的rcbv值均数最低。各亚型间瘤体实质最大rcbv值均数间差异有统计学意义(p＜0.05)，良恶性脑膜瘤实质部分最大rcbv值均数间差异有统计学意义(p＜0.05)。瘤周水肿区的rcbv值均数间差异无统计学意义(p＞0.05)。结论 rcbv值对脑膜瘤术前分型及良恶性鉴别有所帮助，而瘤周水肿区的rcbv值对脑膜瘤分型及良恶性鉴别未显示临床实用价值。

Pre-operative audiometric testing revealed a mean air conduction pure tone average of 51.93 dB and a mean bone conduction PTA of 23.17 dB. The mean post- operative air conduction and bone conduction PTA were 36.59 dB and 24.23 dB, respectively. The mean pre- and post- operetive air-bone gaps were 28.76 dB and 12.36 dB, respectively, with a gain of 16.50 dB. Sixty-eight percent of patients closed their ABGs to within 20 dB.

术前临床测试平均气导51.93 dB，平均骨导23.17 dB；术后平均气导36.59 dB，平均骨导24.23 dB，术前、术后骨气导差距分别为28.76 dB和12.36 dB，骨气导差距改善了16.40 dB，68%的病人骨气导差距缩小到20 dB以内，无听力下降者。

Pre-operative audiometric testing revealed a mean air conduction pure tone average of 51.93 dB and a mean bone conduction PTA of 23.17 dB. The mean post- operative air conduction and bone conduction PTA were 36.59 dB and 24.23 dB, respectively. The mean pre- and post- operetive air-bone gaps were 28.76 dB and 12.36 dB, respectively, with a gain of 16.50 dB. Sixty-eight percent of patients lunwen114closed their ABGs to within 20 dB.

术前临床测试平均气导51.93 dB，平均骨导23.17 dB；术后平均气导36.59 dB，平均骨导24.23 dB，术前、术后骨气导差距分别为28.76 dB和12.36 dB，骨气导差距改善了16.40 dB，68%的病人骨气导差距缩小到20 dB以内，无听力下降者。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。