年限

稀释技术~（14）C测年的关键在于本底气的稳定，稀释技术测定的最大年限取决于样品的含碳量。

Using dilution technique in radiocarbon dating is for the stability of background gas , and maximum age limit required by dilution technique depends on the content of carbon in a sample .

法律约束；法律年限；违法罪行；违法掠夺。

Statutory restrictions ; a statutory age limit ; statutory crimes ; statutory rape .

有些产品过了有效使用年限后是可以回收再利用的。

Some products can be recycled at the end of their useful life .

这座楼房已超过使用年限了。

The building has outlived its usefulness .

录用标准取决于年龄和工作年限。

The cut-off point depends on age and length of employment

折旧是根据大部分这些资产进行计算并扣除，表示这些资产在其使用年限内的经济成本。

Depreciation is calculated and deducted from most of these assets , which represents the economic cost of the asset over its useful life .

在发达国家，与技术水平较低的人相比，受教育程度较高的人工作年限越来越长。

Across the rich world , well-educated people increasingly work longer than the less-skilled .

预期寿命的延长以及慷慨的固定养老金计划被不再慷慨的固定缴费养老金计划所替代，这些都意味着甚至有钱人也必须延长工作年限以获得舒适的退休生活。

Rising life expectancy , combined with the replacement of generous defined-benefit pension plans with less generous defined-contribution ones , means that even the better-off must work longer to have a comfortable retirement .

专利权是指依法批准的发明人或其权利受让人对其发明成果在一定年限内享有的独占权或专用权。

Patent right is a kind of monopolized or special right approved by law for inventors or alienee in definite term .

BP神经网络对劳动人口的平均受教育年限的预测

Prediction about Labor Population Annual Education Attainment by BP Neural Network

不同植烟年限土壤pH和酶活性的变化

Changes of pH and enzyme activities in soils for different tobacco cropping years

叶片是茶树体内Al积累最重要的器官，且其Al含量随茶园种植年限的延长而增加。

In tea plants Al mainly accumulated in mature leaves , and their Al content increased with the extension of planting years .

方法：93例绝经后妇女按绝经年限分A组（绝经1～3年），B组（绝经4～25年）。

Methods : 93 postmenopause women were grouped by the period of menopause : group A ( menopause of 1 ~ 3 years ) and group B ( 4 ~ 25 year ) .

不同年龄、工作年限儿科护士心理健康得分差异有统计学意义（P0.05）。

The scores data of pediatric nurses ' mental health collected with different ages , work ages and marital status have statistical significance ( P0.05 ) .

而年龄、病程、受教育年限、BMI值与PSQI得分均无相关性。

Age , course of disease , education years and BMI show no relation to PSQI .

而种植年限为7年的土壤微生物群落DNA序列多样性指数及修正丰富度指数均呈现最低值，均匀度指数也非常低，可能是土壤生态环境最差的土壤；

Diversity index and modified richness index of soil cropping for seven years was lower , which may be the most bad soil sample , was lowest , and evenness index was lower too .

方法：共采集30例非牙周炎和49例患慢性中、重度牙周炎（其中15例E2>30pg/ml患者和34例E2≤30pg/ml患者）的维族妇女，所有妇女绝经年限均≤5年。

Methods : Forty-nine moderate / severe chronic periodontitis patients ( including 34 E2-deficient subjects and 15 E2-sufficient subjects ) and 30 non-periodontitis subjects , all within 5 years after menopause , completed the study .

〔结论〕长期接触DMF可引起DNA断裂损伤，断裂损伤程度随着接触年限的延长有加重的趋势。

〔 Conclusions 〕 Long-term contact with DMF can cause DNA strand breakage . The extent of the breakage increases along with time prolongation in people having contacting with DMF .

由于CT机X线管的价格昂贵，且使用寿命有限，因此如何延长X线管的使用年限就成为每个医疗单位非常关注的问题。

It has became a very much concerned problem for every hospital to know how to prolong the service life-span of X-ray tube in CT machine , as its price is very high and its life-span is limited .

胡敏酸的E4/E6在有机物料处理间变化规律不明显，但其值都大于CK，随培肥年限的增加，处于动态的变化。

The ratio of E4 / E6 were no obvious difference in all organic manure treatments , but higher than that of CK , and kept dynamic changes .

结果发现：人均受高等教育年限和收入基尼系数之间存在着协整关系，并且高等教育公平是收入分配公平的Granger原因。

Results : average higher education years and income Geordie coefficient have co-integration relationship , and higher education equity is the Granger origin of income distribution equity .

相似性系数Sorenson指数（Cs）的测度表明，每一群落类型总是与退耕年限最邻近的群落具有最高的相似度。

Sorenson 's similarity index ( Cs ) indicated that the similarity between every community and its nearest abandoned time was the highest .

PPP项目的特许经营期指从特许经营协议生效开始的一定年限期间，包括建造期和运营期。

Concession period of PPP project started from the validation of franchise agreement and lasted for a certain period of years , including the construction period and operation period .

此外，本文还对不同学历和不同任职年限的企业RD投入强度与策略变量之间的关系进行了研究，发现企业的RD投入强度在不同高层管理者的影响下也呈现不同的变化。

In addition , the relationship between R & D intensity and strategies is also analyzed in the enterprises guided by top manager with different academic degree and different position time . We find that different connections appear in these enterprises .

结果表明，随着垦殖年限的增加，Cd、As、Hg元素大量富集在0～20cm土壤中，其原因与污水泡田相关；

Cd , As and Hg accumulate in the soil depth of 0 20 cm with the increases of the planting number of years , which was related to sewage irrigation .

为了延长进口设备的使用年限，获得最佳经济效益，急需用新型绘图仪改造原DDL-Ⅲ系统的CRT绘图仪。

To expand the usage life of import equipment and obtain optimal economic efficiency , a new type of plotting apparatus is badly needed to reconstruct CRT plotter used in DDL-III system .

深度在40cm以上的表土，腐殖酸总量及各组分含量都随着撂荒年限的增长呈递增趋势。

The contents of humus acid and its composition decreased with depth , and increased with the increasing of years .

EQ-140型运材车经济使用年限的研究

Study on economical service life of EQ-140 logging truck

并用不同的PAV老化时间（10h、20h、40h）后模拟路面不同使用年限的胶结料的状态。

Different PAV aging time of 10h , 20h and 40h were adopted to simulate the condition of binder with different service life .

为了探讨不同性别、项群以及训练年限的高水平运动员在流畅心理状态上的差异和作用，采用澳大利亚学者Jackson编写的《流畅状态量表》对128名高水平运动员进行了调查分析。

In order to discuss different gender , major and training year in the flow state 's discrepancy and effects of elite athletes , by using the flow state scale made by Jackson , 128 elite athletes are investigated .