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Result The results showed that for the causes why tuckahoe cultivation field cann't be used successively, the change of organic matter, available N, available P, available K in the soil could almost be excluded, the decrease of pH value was likely one. The number of Blattodea increased in evidence, but the further study must be required to elucidate the causality.

结果］结果表明，对于茯苓栽培场不能连续使用的原因，有机质、速效氮、速效磷和速效钾的变化可以排除；pH值有明显下降，推测是重要因素之一；蜚蠊目昆虫数量有明显增加，其因果关系尚需进一步研究。

They can also expand efforts to increase the number of females and underrepresented minorities in this field and expand professional development opportunities for high school computer science teachers.

他们还可以扩大努力，在这一领域增加女生和代表名额不足的少数族裔，并且为高中计算机科学的教师扩大职业发展机会。

Ungulate tracks: regular field survey of routes, recording the number of fresh tracks (less than 24 hours old) and snares on the routes.

有蹄类足迹：定期进行样线调查，记录样线上24小时内新鲜足迹的数量和猎套数量。

However, there are still a number of unsolved problems in this field.

然而，在这个领域中还存在许多未解决的问题。

Explanation: A careful look at the full field of view for this sharp image reveals a surprising number of galaxies both near and far toward the constellation Ursa Major.

说明：仔细观看这张清晰的全景影像，就会发现在大熊座方向上从远及近有大量的星系存在。

Candidates. The institute has undertaken a number of research projects with grants from several foundations and government agencies home and abroad since 1998. Those key projects including 1 Ministry of Education key grant, 4 Chinese NSF grants, 4 Chinese NPOPSS grants, 1 FAO granted project, 1 joint CIDA project with Canada and 1 joint USIA project with USA make the institute to be front in this field.

近年来先后承担了多项国家级和国际合作研究项目，其中教育部重大项目1项，国家自然基金4项，国家社科基金4项，FAO委托项目1项，中加合作CIDA项目1项，中美合作USIA项目1项，在同行中产生了一定的影响。

In order not to have to use large buffer memories, the vertical deflection is synchronized with the input signal, but the number of lines per field or frame is varied.

为了不必使用大的缓存器，垂直偏转与输入信号同步，但是每场或每帧的行数是变化的。

An interpolation method to simulate fluid field numerically is advanced inthe light of general wavelet sampling theory. A number of properties areidentified: easy design, fast speed, high precision, no numerical viscid and wideapplication.

利用一般的小波采样定理，给出一个流场的数值模拟插值方法，该方法最大优点是设计思想简单，速度快，精度高，没有数值粘性，适用范围广。

The company set the development, production and sales, has been committed to the field of power equipment to explore and practice, in the company's vast number of projects, technical staff's efforts, is to form a DBW, SBW series compensated AC voltage stabilizer, aging Test voltage regulator, TDGC2J, TSGC2J Series Contactless manual, electric regulator, SG series dry-type transformers as the dominant products.

公司集开发、生产和销售于一体，多年来一直致力于电源设备领域的探索与实践，在公司广大工程、技术人员的努力下，现以形成以DBW、SBW系列补偿式交流稳压器、老化试验稳压器、TDGC2J、TSGC2J系列接触式手动、电动调压器、SG系列干式变压器等为主导产品。

The survey about employing insecticide in zone of releasing Aphidius gifuensis and convention field show that: Agricultural chemicals employment number of times reduce 1.22 and average employment amount reduced 40%.

对放蜂区和常规施药防治区内烟农施用杀虫剂情况的调查表明，在放蜂区施用杀虫剂的平均次数为1.83次，而常规施药防治区为3.05次，放蜂区的施药次数比常规防治区减少40%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。