年限

Furthermore, the determination method of alkaloids is discussed. Results show the total alkaloids contents in crease with Wu-He Dipsacus growing longer years.

结果表明：随着生长年限的增加，其根中总生物碱的质量分数积累呈现出递增趋势。

Business card printing and membership card-making enterprises have a preference for the 1990s, after which commerce abroad far longer than the useful life of elimination in sheet-fed offset printing presses, the age of 10 years or so much, this will also allow the secondary disnature supply and demand of Commerce in great demand by offher.

制卡和会员卡制息企业众偏不恨20世纪90年代后的摆设，而商轮在不不国边的裁汰年限不远善于独弛纸胶印机，机龄在10年把持的并不众，这种供需错位也让二手商轮更不隐行俏。

Because of the relation of positive sequence of the production and deposition time of dissolvable TR compound, in certain years, the "red" of Pu'er Tea is an important index to identify the aged period of Pu'er Tea.

由于不溶性茶红素复合物的产生与存放时间的正相关关系，在一定的年限内，普洱茶的&红&是鉴别普洱茶陈期的重要指标。

As the result showed: Compared to American Ginsengs growing in different years, the result showed that the amount of edaphon in American Ginsengs' rhizosphere became larger and the soil physcial and chemical properties changed in different degree .

结果显示：通过对不同生长年限的比较，西洋参根际土壤微生物有总体水平看，均有所增长，土壤理化性质也有不同程度的改变。

The American Ginseng ,as the study objects, which grew in different years in Jiling and Beijing, were studied on Dynamics of Soil Microorganisms by separating, culturing, counting and identifying the edaphon among soil of American Ginsengs.

以吉林、北京两个产地不同年限西洋参根际土壤微生物为研究对象，对其土壤微生物进行分离、培养、计数和鉴定来研究土壤微生物区系的动态变化。

The mount of germ and fungus quantity in soil are remarkably increased for the continuous cropping about 5 years, puts the trichobacteria quantity always change tendency to reduce;The edaphon total quantity, the bacterium quantity change reduces generally above the continuous cropping 5 years and below 5 years (including 5 years) the change are not obvious;In the nitrogen physiology group by ammoniates the bacterium primarily and the quantity changes are not very big;The nitrifying bacteria quantity is lower than the comparison (non- continuous cropping), the quantity of denitrifying bacteria is opposite;The alkalinity phosphatase, the urease, invertin activeness have a closed relations with the continuous cropping when it will increase less than 5 years or decrease in more than 5 years. The relation between catalase activeness and the continuous cropping is not very big. The reduction of the invertin activeness, the alkalinity phosphatase, urease activeness have slightly elevates, catalase activeness have no the regular changes.

表现为连作条件下土壤真菌数量显著增大，放线菌数量总的变化趋势降低；土壤微生物总量、细菌数量变化在连作5年以上普遍降低，5年以下(包括5年)则变化差异不明显；氮素生理群中以氨化细菌为主，但数量变化不大；硝化细菌数量低于对照组，反硝化细菌数量则相反：多酚氧化酶、转化酶活性在5年之前逐渐上升，5年之后逐渐下降，，脲酶活性随着连作年限增加持续上升，过氧化氢酶活性、碱性磷酸酶活性变化无规律。

In breeding practice, male gametophytic selection as a plant genetic improvement tool with many advantages such as can be shorten the breeding time limit and raise the selection efficiency.

在育种实践中，利用雄配子体选择对植物进行遗传改良，具有提高选择机率和缩短育种年限等优点。

My father is a geotechnic engineer, he has work for 33 years, he's now the project manager of his company and he's one of the chief engineers in his co..

这个回答感谢我的好朋友老贾，因为他提醒我说美国人很重视父母的职务和工作年限，像岩土工程师这样的职业如果有了二三十年的工作经验本身就是一种地位和财产的象征，所以在这里建议自费的签友们，如果你们父母的工作也是这类的，可以不用VO问，自己就讲出来，这也是证明你们如何support自己的最好办法

The results show increasing numbers of soil pathogenic microbes with prolonged planting, the main reason for disease occurrence and spread of soil-borne diseases. Hypogenetic plant, lower photosynthetic rates and enzyme activities decrease self-resistance of the cucumber plant to disease. These form the internal-causes of cucumber disease outbreak. Increases in humidity. decreases in temperature and sunlight are the external-causes of cucumber disease outbreak. The longer the succession, the severer is the spread of soil-borne diseases.

结果表明：随种植年限的延长，土壤中病原微生物数量增加，是导致黄瓜土传病害加重的主要原因；黄瓜植株生长发育不良，黄瓜的光合速率及抗性酶活性降低，植株自身抗病性下降，是引起黄瓜病害发生加重的内因；温室内温度降低、湿度提高、光照下降，是导致黄瓜病害发生加重的外部条件。

Being a protective tillage, the no-tillage means getting rid of not only the tillage before sowing, but also the intertill after sowing, and leaving the plant residue after harvesting.

中文题名稻田自然免耕体系土壤微生物及有机质周转研究副题名外文题名 Study on the microbial characteristics and the turnover of organic matter in paddy soil under a long-term no-tillage and ridge culture 论文作者张磊导师谢德体教授魏朝富研究员学科专业土壤学研究领域\研究方向土壤生物和生态学位级别博士学位授予单位西南农业大学学位授予日期2002 论文页码总数92页关键词稻田土壤生态学土壤有机质土壤微生物免耕馆藏号BSLW /2003 /S154 /1 免耕制是一种保护性耕作制，指同一块土壤在一定年限内，不仅免除播前耕作，也免除播后中耕，作物收获后直接将作物残茬留在土壤中的耕作方式。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。