空中指挥

Emerging Technologies

Emerging Technologies 2005 MIT Technology Review , Technology Review, Inc. Distributed by Tribune Media Services International Of the numerous technologies now in development, MIT Technology Review ha

发表于:2018-12-19 / 阅读(79) / 评论(0)

彭蒙惠英语

清洁空气4观叶植物

These hardworking houseplants can sweeten every breath you take . Put Your Plants to Work In the early 1980s, when NASA researchers were looking for ways to purify the air inside the space pods of the future , they didn ' t just look to engineer a pr

发表于:2019-01-08 / 阅读(65) / 评论(0)

英语小短文

大气污染来自汽车尾气

According to the latest research, vehicles, coal-burning, airborne dust and industrial production account for 85 to 90-percent of the major airborne pollution sources in most Chinese cities. Vehicles are the biggest polluters in Beijing, Hangzhou, Gu

发表于:2019-02-03 / 阅读(42) / 评论(0)

英语新闻

A California company has unveiled a tiny flying drone

A California company that makes unmanned drone aircraft for the U.S. military has unveiled a tiny flying drone that looks like a hummingbird(蜂鸟). The airborne spy is part of a new kind of military technology that also has civilian uses. Several y

发表于:2019-02-08 / 阅读(57) / 评论(0)

英语新闻

VOA标准英语2008年-New US General Takes Command of NATO Troops in

By Barry Newhouse Islamabad 03 June 2008 The U.S. general who led allied ground forces in the invasion of Iraq has taken command of NATO troops in Afghanistan. VOA's Barry Newhouse reports General David McKiernan takes charge as commanders in Afghan

发表于:2019-02-12 / 阅读(72) / 评论(0)

VOA标准英语2008年（六月）

与空气污染有关的托福词汇

雾霾 haze; 烟雾 smog; 空气污染指数 air pollution index; 橙色预警 orange alert; 悬浮颗粒物 airborne particulate matter; 可吸入颗粒物 inhalable particle; 有毒物质 toxic substance; 空气质量检测 air quality monitoring; 实

发表于:2019-02-26 / 阅读(67) / 评论(0)

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arterial shear stress

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