《字汇》对后世字书产生了重要的影响,但也有字头字形错误或重出、反切用字与被切字相同或叶音与本音反切用字全同、释义不明或错误、异体关系失于沟通或不合体例等不足。

Zihui (字汇) has an important influence on the later dictionaries. However,wrong or repeated characters occasionally appear;some tangential characters are the same as annotated characters;some tangential characters in Xieyin(叶音) and Benyin(本音) are the same;the interpretations are indistinct or inaccurate;the relationship among characters is not linked,or out of style.

对连香树一年生实生苗一个展叶时期内的单叶生长动态及其叶绿素含量相关性进行了研究,结果表明,单叶叶面积增加持续时间为22 d,平均增长幅度1.98 cm2/d,叶长、叶宽、叶柄长、叶绿素含量、成熟叶面积的发育趋势为8月份7月份6月份,展叶速率在展叶期间呈现波动变化,最高每天达41.4%。成熟叶面积越大,其展叶速率越慢。对展叶速率与叶长、叶宽、叶柄长、叶面积、叶绿素含量的相关分析显示,在P=0.01水平上,展叶速率与叶长、叶宽、叶柄长、叶面积、叶绿素含量呈极显著负相关,叶面积与叶长、叶宽、叶柄长、叶绿素含量呈极显著正相关。叶面积与生长时间的关系符合S型曲线模型。

Dynamic comparation of single leaf in fast-growing period and their correlation of chlorophyll content of Cercidiphyllum japonicum of one year old seedlings was studied,including the indexes of leaf length,leaf width,petiole length, leaf area,leaf thickness and chlorophyll content . The results showed that the increasing duration of average leaf area was 22 d . The average growth rate 1.98 cm2/d,The development trend of leaf length,leaf width,petiole length,leaf area and chlorophyll content was August > July > June.The change of the leaf expansion rate took was fluctuating,the highest value reached to 41.4% per day;the larger of mature leaf area,the slower of the leaf expansion rate. The correlation analysis between leaf expansion rate and leaf length,leaf width,petiole length,leaf area and leaf thickness showed that the leaf expansion rate had very significant negative correlation with leaf length,leaf width,petiole length,leaf area and chlorophyll content,at P=0.01 level,leaf area ha

对不同产区的3个等级4个区位烟叶样品的化学成分进行了系统的比较分析,探讨了不同产区的4个区位烟叶化学成分的相似性。结果表明:不同区位烟叶中化学成分含量有一定的差异,还原糖含量叶缘、叶尖较高,叶基低;淀粉叶基较高,叶缘较低;烟碱中下部烟叶叶缘、叶基较高,叶中较低;总氮叶尖较高,叶缘、叶中较低;钾离子含量叶基最高;色素成分含量叶基最高。3个等级的还原糖含量在4个区位之间均达到极显著正相关,其他成分在4个区位之间也存在不同的相关性。

The comparative study was conducted for the chemical compositions of four positions of tobacco leaf samples with 3 grades from different tobacco -growing areas .The results showed that there were certain differences in the content of chemical com-positions of tobacco leaves among four positions .The content of reducing sugar was higher in leaf tip and leaf margin , and lower in leaf base;the content of starch was higher in leaf base , and lower in leaf margin;the content of nicotine was higher in leaf margin and leaf base , and lower in leaf center;the content of total nitrogen was higher in leaf tip , and lower in leaf margin and leaf center;the content of potassium was the highest in leaf base;the content of pigment was the highest in leaf base .The content of reducing sugar showed significantly positive correlation at 1%level among four positions of tobacco leaves with 3 grades, and the content of other chemical compositions also had different correlations among four positions .

以高负荷风扇的末级静叶为研究对象,提出一种扇形叶栅实验方法,可以在不考虑动叶的情况下模拟静叶在压气机级内的进口气流条件,从而实现真实的静叶性能研究.利用数值模拟方法分析该方法的可行性,然后对静叶的气动性能展开详细研究,分析不同来流马赫数下的静叶流场参数.结果表明:本文提出的实验方法可以为静叶提供接近真实动叶出口条件的气流参数,该研究静叶的方法用于实验是可行的.对静叶的气动性能分析发现,进口马赫数变化对静叶中径附近20%~60%叶高影响较大,尤其是40%叶高处流场结构和参数受来流马赫数的影响最大.

An experimental method was put forward to obtain the inlet flow parameters of the rotor-stator blade by installing the adjustable guide vane ( AGV) before the stator blade .Nu-merical computation was carried out to verify the experimental method as well as to analyze the aerodynamic characteristic of the stator blade .Results show that the experimental method can ensure the stator inlet flow parameter according with that in the fan stage .The design of the AGV is reasonable .Inlet flow Mach number has a great influence on the stator flow dis-tribution from 20%span to 60%span of the blade .Especial-ly at the 40%span, the flow structure and parameters are in-fluenced by the Mach number significantly .

对山西省6大气候区主要公园绿地和交通干道绿化中运用的彩叶树种进行调查和分析,调查内容包括植物种类、色叶时期、色系类型。结果表明:(1)山西省彩叶树种共69种,分属29属,23科;其中,以槭树科、蔷薇科、漆树科种类居多。其中,春色叶植物6种,秋色叶41种、常色叶22种;分别占总彩叶树种的8.7%,59.4%和31.9%。(2)以晋城、晋中和太原代表的温暖气候带彩叶树种应用最多,以大同为代表的温寒气候带彩叶树种最少。(3)山西省共有红色系彩叶树种44种,占彩叶树种的66%;黄色系树种占彩叶树种的25%,它色彩叶树种仅占9%。

The species,ornamental period and leaf color series of color-leafed trees utilized in horticulture within 6 climatic regions of Shanxi were surveyed.The result showed that 1 )there were 69 species which be-longed to 29 genus and 23 families.And most of them were from Aceraceae ,Rosaceae and Anacardiaceae .There were 6 spring color leaf species,41 autumn color leaf species and 22 regular-color leaf species which accounted for 8.7%,59.4% and 31.9% respectively;2)the species from warm temperate zone were the most and it was the least for cold temperate zone;3)there were 44 species of red-leaf trees (accounted for 66%)and the species of yellow-leaf trees and other accounted for 25% and 9% respectively.