Estimates suggest that for every cubic meter of vent discharge, 350 milligrams of particulate organic material would be advected into the vent area.

据估计，每立方米排气口所排出的物质中，就有350毫克的有机颗粒物质被平流输送到排气口区域。

youdao

Large quantities of radioactive material leaked into the surrounding area following the disaster and much of the countryside around the plant is sealed-off.

灾难发生后大量放射性物质泄漏到周边区域，核电站周围很多农村被封闭起来。

youdao

Together, they compiled a database of 645 rituals from 74 cultures, drawing on the Human Relations Area Files, a large collection of ethnographic material.

借助资料丰富的人类学宝库——“人类关系区域档案”，两人共同整合出了一个数据库，涵盖75个国家的645种宗教仪式。

youdao

Iron ore, the main raw material of steel, changed the lakes area and the nation.

VOA: special.2009.11.11

As time passed, the area filled with material left by rivers.

VOA: special.2009.04.15

In a full meltdown, such as the 1986 Chernobyl disaster in the Soviet Union, the rods melt completely and the release of energy causes an explosion that contaminates the surrounding area with radioactive material.

WSJ: Uranium Firms Take Hit After Earthquake

Beach downdrift: area of beach towards which material is being moved by longshore transport.

UNESCO: L O S S A R Y

Remarkably, this is the area in which the least material change has taken place to date.

CENTERFORSECURITYPOLICY: US-Soviet Relations