Methods 9 vocational schools in Ktmming are selected by using the convenience sampling method.

采用方便抽样的方法，抽取昆明市主城区9所中等职业技术学校。

Methods Convenience sampling was adopted to investigate 125 nurse in a primary hospital with questionnaire.

方法采用便利抽样对一县级综合医院125例护理人员进行问卷调查。

During our pre-test, 15 graduate students and 15 members of the public were chosen through convenience sampling.

在我们的预试验， 15个研究生和15名成员组成的市民选择通过方便取样。

Methods 15 lying-in women were chosen through the method for convenience sampling using the qualitative research.

方法采用质性研究的方法，用便利取样的方法选择15名产妇通过访谈收集资料。

550 and 451 respondents were selected from China and Sri Lanka respectively by utilizing cluster and convenience sampling procedures for both contexts.

中国和斯里兰卡分别有550人和451人应答者参加了此次问卷调查，应答者的选取采用的是群集抽样和便利抽样两种方法。