We care how cancer patients breathe,for electrostatic cleaner can adsorb heavy metals in the air.

我們關心癌癥患者的呼吸，用靜電除塵器過濾空氣中的重金屬微粒

Modern agriculture ; environmental pollution control ; agriculturally cleaner production

現(xiàn)代農(nóng)業(yè)视频偷拍；環(huán)境污染控制av高清不卡；農(nóng)業(yè)清潔生產(chǎn)

TUV AIMAK, Mongolia - Otgonsuren Perenlei, 27, and her husband moved back to the steppe from Mongolia's capital city, Ulan Bator, a few years ago, attracted by cleaner air and a more eco-friendly nomadic lifestyle.

由於向往更乾凈的空氣，還有對生態(tài)更友善的游牧生活在线观看中文字幕码2018，27歲的佩倫雷和她的丈夫幾年前從蒙古的首都烏蘭巴托搬回西伯利亞大草原99人e视频这里精品。

This means that you will get cleaner, healthier air in your home.

這意味著，您的家庭將獲得更清潔国产污污污在线观看免无毒，更健康的空氣十八岁禁黄色网站。

First, it can make our air cleaner.

首先，它能使我們的空氣變成更干凈免费观看黄页网站。

When you cannot put an air cleaner in each room.

當你不能把一個空氣凈化器在每個房間www.欧美亚洲精品。

Something should be done about the use of cars in order to have cleaner air.

為了得到更清潔的空氣，應該就汽車的使用問題采取措施最黄网站视频在线播放。

For the future of Beijing, we have to plant more trees as we will have cleaner air.

為了北京的未來亚洲√a无码作爱，我們要多種植樹木，這樣就可呼吸到更新鮮的空氣先锋影音最新av资源网址。

China, too, seems likely to choose cleaner air.

而中國的選擇也很可能是更加清潔的空氣国产青榴视频A片在线观看不卡成。

We should plabt more trees,because they can make our air cleaner.

我們應該種更多的樹男女视频在线免费看，因為它們能使我們的空氣更清新。