Through years of survey and investigation of plot test and high-yielding cultivation, the grain number and spike of wheat were studied.

通过多年的小区高产栽培试验和高产攻关，对小麦的穗数、穗粒数进行了研究。

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This article adopts scientific research methods such as literature research, questionnaire survey and investigation research and interview.

本文主要采用文献检索法、问卷调查法、个别访谈法等科学研究方法。

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This paper makes a survey and investigation on the English learning situation among Non-English Majors in Non-Governmental Colleges by means of the descriptive statistics and qualitative analysis.

本文以问卷调查的形式，通过描述性统计和定量分析，对民办院校非英语专业本科生的英语学习状况进行了调查研究。

youdao

Jay Magill Jr. tries to answer this question in "Sincerity, " a fascinating cultural survey and intellectual investigation.

WSJ: Book Review: Sincerity

The second priority is to conduct archaeological investigation and survey in Lumbini and its surrounding areas, especially in the buffer zones within the Kenzo Tange Master Plan.

UNESCO: OFFICE IN KATHMANDU

King William's lasting memorial is likely to be his "Domesday" survey - a huge investigation into the wealth of the kingdom commissioned in 1085 and completed just two years later - and the first of its kind in this country.

BBC: 9 September