【摘 要】
：
5鸭梨我国栽培历史最久的古老优良品种之一,原产河北南部。果实倒卵圆形,梗端一侧有明显的鸭头状突起。平均单果重188克。果皮黄绿色,果面细嫩,果点较小,近果梗处有锈斑。果
论文部分内容阅读
5鸭梨我国栽培历史最久的古老优良品种之一,原产河北南部。果实倒卵圆形,梗端一侧有明显的鸭头状突起。平均单果重188克。果皮黄绿色,果面细嫩,果点较小,近果梗处有锈斑。果梗长5.6厘米,无梗
5 Pear Cultivation history of China’s oldest one of the fine varieties, native of southern Hebei. The fruit is obovate, with obvious duck head protruding on the stem side. The average weight of 188 grams. Peel yellow-green, delicate fruit, fruit smaller, near the stems rust spots. Fruiting pedicel 5.6 cm long, sessile
其他文献
随着社会的不断发展及经济水平的日益提高,城市交通体系正在逐渐发展完善.本文结合城市轨道交通建设的相关内容,从城市轨道对沿线地区的规划发展等方面入手,分析了城市轨道交
In this paper, analysis of the beam orbit stability and conceptual study of the dynamic orbit feedback inthe SSRF storage ring are presented. It is shown that b
《中国输血杂志》是由中华人民共和国卫生部主管、秉承中国输血协会暨中国医学科学院主办,面向医疗单位、采供血机构、生物制品研发单位、医学科研院所及大专院校各类人员的
柑橘处于果实膨大、秋梢抽发期。本月可全面进行秋季嫁接,高接换种可采用腹接法,砧木苗嫁接以9月上中旬为最适嫁接期。注意苗圃排水;整地准备移栽砧木苗。幼树垒好树盘,套种
提出一种计算多导体系统中分布电容矩阵的简单有效方法。该方法适用于无限薄带条的多导体系统,用矩量法和谱域格林函数求取空域格林函数的表达式,再解电容矩阵。
A simple a
Radial distribution of vapor local parameters, including local void fraction, interfacial velocity, bubblesize, bubble frequency and interfacial area concentrat
1播期的确定夏播西瓜生长期间,处于京郊高温高湿季节,一般直播西瓜生育期75～80天,比同品种春播短10～15天。育苗移栽要考
1 sowing date Summer sowing watermelon growing sea
Al precipitates as well as cavities (or open-volume detects) are known for their ability to getter impuri-ties within Si. In order to compare their relative get
Owing to the high oxygen-respiration in the brain of mammals, oxidative damage to prion protein hasbeen suggested to be an additional factor. A large body of in