Scientistsoften tow fine mesh nets behind their boats to conduct a census offloating debris, Proskurowski said.

普罗斯库罗斯基说，科学家通常会在船后拖上一张细网，以此对海洋中的漂浮物情况进行打捞调查。

Nearly 2.7m civil servants set out around India to conduct the world's second-largest census.

近270万工作人员开始对印度进行全球第二大规模的人口普查。

I'm here to conduct the annual census checks of residence aliens.

我来这是进行一年一度的外籍人士户口调查的。

I'm here to conduct the annual census of foreigners living in Beijing.

我来这儿是对住在北京的外籍人士进行一年一度的人口调查的。

I'm here to conduct the annual census checks of resident aliens.

我来这儿是进行一年一度的外籍人士户口调查的。

I'm here to conduct demographic census of foreigners living in Beijing.

我来这是对住在北京的外籍人士进行一年一度的人口调查的。

I am here to conduct the annual census checks of resident aliens.

我是来做一年一度外籍人士的户口调查的。