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In order to get the relationship between mental pollution in soil and vegetables and support green vegetable production, five kinds of common foliage vegetables(Lettuce Plant, Schizonepeta Tenuifolia Briq, Lpomoea aquelica, lettuce, Amaranthus hypochondriacus) were taken as experimental materials to study the correlation between the polluted vegetables and the soil of different concentration of Cd cultivated in greenhouse. The soil pollution threshold values to produce the green vegetables were analyzed.

为探求土壤重金属污染和蔬菜污染的相关性,为绿色蔬菜生产提供技术支持,该研究以郑州市常见的5种叶菜类蔬菜(油麦菜、荆芥、蕹菜、生菜、苋菜)为试验材料,采用温室盆栽土培试验方法研究了土壤不同浓度 Cd污染与蔬菜污染的相关性,并对绿色蔬菜生产要求的土壤污染阈限值进行了分析。

It is stated systematically in the thesis the methods theories and measuring principle of all kinds of geostress determination technology. In particular the four methods recommended in 1987 by the committee of test method of the International Society of Rock Mechanics, i.e. two over-coring methods of strain relief in boreholes, hydraulic fracturing method and stress furbish measurement which measures the surface stress.

本文较为系统地、全面地介绍了当前国内外通用的各种地应力测量方法的理论、测量原理;特别就国际岩石力学学会试验方法委员会于1987年推荐的4种地应力测定方法(钻孔孔径变形测量法、钻孔孔壁应变测量法、水压致裂法以及测量岩体表面应力的应力恢复测量法)作了较为详细的叙述。

The simulation test method and system for the starting characteristics of capacitance proximity fuze are introduced in this paper.

阐述了电容近炸引信启动特性的模拟试验方法和模拟试验系统。

In addition, the past 20 years, no change in the standard steam trap is still in use in the 20th century set the standard 80, test method does not improve, or replace with low parameters of high parameters, which parameters of the steam traps for high-test is unscientific.

除此之外,近20年来,蒸汽疏水阀的标准没有变化,仍然沿用20世纪80年代制定的标准,试验方法没有提高,还是用低参数替代高参数,这对于高参数蒸汽疏水阀的试验是不科学的。

Anti-brush test method and indictor are put forward through test.

通过试验提出了半刚性基层材料抗冲刷试验方法和评价指标。

Patients and methods: 170 infertile men were enrolled in this study.

试验病人和试验方法:有170名男性不育病人参加了本次研究。

The pot and soil culture experiments were conducted to study the effect of bioorganic fertilizer on contents of heavy metals in Chinese kale and soil.

采用土壤培养试验及盆栽试验方法,对施用生物有机肥对土壤及芥蓝体内重金属含量的影响进行了分析测试。

The tire modal test and its application to the tire structure design were analysed,and a tire modal analysing test system was established.

分析了轮胎模态分析的试验方法及其在轮胎设计中的应用,并建立了轮胎模态分析试验系统。

Methods The optimal concentrations of CarE and substrate, pH, temperature and reaction time of the reaction system, were determined by orthogonal matrix methods.

用正交试验方法研究酶液浓度、底物浓度、反应体系的pH值、反应温度、反应时间5个因素对德国小蠊CarE活性的影响,并从试验组合中选出最优的条件组合。

One-year-old seedlings of Chinese Redbud were grown in a pot with varying soil water levels, soil salt levels and intercross stress to determine photosynthetic characteristics.

应用盆栽试验方法,采用完全随机试验设计,研究了1年生紫荆实生苗在不同土壤盐分和水分及交叉胁迫下的光合特性。

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推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。