平均差

The daily mean air temperature of 20 cm height,daily change of air temperature and daily maximum temperature in the areas without intercropping were higher or larger than those with intercropping of rye grass;the air humidity in the areas with intercropping of rye grass was higher than that without intercropping.

结果表明，在热状况下，自然裸露区域桃园的空气温度日较差、日极端最高温度和20 cm高度处的空气平均温度均高于黑麦草套种区，空气湿度则黑麦草套种区明显大于自然裸露区。

This article deduces the formula of distance on mean elevation plane measured and the formula of altitude difference when inclined distance and vertical angle are observed separately .

推导出了斜距和垂直角分开观测时计算平均高程面上的距离公式以及计算高差的公式，并在进行了精度分析的基础上，提出了能满足精度要求应采用的公式。

Mean age of the subjects at the time of the repeated MRI was 37 (SD 0.9) years.

复查MRI时，受试者的平均年龄是37岁（标准差0.9岁）。

The testing results showed that the higher Shore A hardness, tensile strength, elongation at break, modulus at 100% elongation of MMg/NBR vulcanization were obtained when compared to those of C.B./NBR system; and the presser-resistant property of packer-rubber can be improved for 5Mpa with new structure.

结果显示：与炭黑/NBR体系相比，在过氧化物硫化体系下，甲基丙稀酸镁可以有效补强丁腈橡胶，MMg/NBR硫化胶的邵A硬度，拉伸强度，扯断伸长率和100%定伸强度均较高；新设计的胶筒结构简单合理，易卸模，成品率高，并通过模拟试验发现，新的结构形状可以有效改善胶筒的抗破坏性能，耐压差性能平均提高5MPa。

A total of 14 patients await completion of EMR (9) or first follow-up endoscopy (5). CBE-EMR therapy was completed in 32 patients by an average of 2.1 sessions median 2, s.d.

共14名患者等待完成EMR手术（9名）或第一次内镜后续治疗（5名）。32名患者平均经过2.1次CBE – EMR手术完成治疗（中位数2，标准差0.9）。

Men with histologically confirmed BE and HGD (33), IMC (16), underwent CBE-EMR from August 2003 to August 2008. The mean BE segment length was 3.2 cm (median 2, s.d. 2.2); 26 patients had short-segment BE, and 30 had visible lesions.

这些患者BE病变的平均长度为3.2厘米（中位数2，标准差2.2）； 26名患者BE病变长度较短，30名患者存在可见BE病变。

High-dose proton pump inhibition was instituted after initial treatment, and Seattle-type surveillance biopsies were performed on follow-up every 6 months once the CBE-EMR procedure was completed. RESULTS: A total of 49 patients mean age 67 years, median 65, s.d.

结果：2003年8月至2008年8月期间，49名（平均年龄67岁，年龄中位数65，标准差11；75％为男性）经组织学检查证实为Barrett食管的患者均接受CBE-EMR，其中33名患有HGD，16名患有IMC。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失