这是核标志的包围一丸。这意味着如果有意外,丸是可用来保护公民的健康。虽然核电生产电力的安全方法,每个瑞士公民住在核电厂 20 公里范围内接收包的碘化钾。信息 (1) http://en.wikipedia.org/wiki/Potassium_iodide / 信息 (2) http://www.mandcgroup.ie/iopen24/blog.php?blog_id=153 信息 (3) http://saveourbones.com/iodine-your-thyroid-and-your-bone-health/ 原子 事故 危险 原子丸
<p>大纲卡通农场 gif 能源全球发电风力涡轮电力技术更改 erlandh 可再生可再生能源气候变暖可持续动力学风力涡轮机</p><p><em>风电机组剪贴画</em></p> 风 涡轮 能源 风力涡轮机剪贴画
生态学和电矢量图图形的背景模板。多彩多姿的布局,程式化的灯泡内和一些灯具装饰星星电池方阵。大星状与文本阅读中,u""": usave 能源"在中心。为您的生态友好的传单和海报的免费矢量图 星星 光 背景 保存能源背景
Eco friendly energy vector graphics of wind turbines. Close up image of the wind power plants’ blades. Different elongated propellers to design eco friendly energy sources, industrial technology, environment and energy designs. Free vector graphics for your adverts and posters 剪影 工业 风 风力涡轮机剪影元素
The sun produces energy and helium from hydrogen by nuclear fusion. The picture shows the proton-proton-cycle 天文学 天体物理学 试用版 Pp 周期
Kernkraftwerk, Atomkraftwerk, nuclear power plant, Harrisburg, Chernobyl, Tschernobyl, Fukushima 切尔诺贝利 福岛 哈里斯堡 核电站-Kernkraftwerk
Danger and science vector footage of a radiation symbol and text art. Humorous layout with a standard radiation icon with a circle and rounded triangular shapes and text reading , u"”": ua little radiation brightens your day”. Free vector graphics for posters, greeting cards, backgrounds and wallpapers 图标 搞笑 符号 辐射
Recycle vector symbols set, ready to use in any logo or label. Two logos of them are very simple; two icons have reflections and details. Download environment clip art for your greener planet, environment, ecology, nature, industry, packaging and waste management graphics 性质 光面纸 回收 回收标志
Purple swirls vector background with twisting white energy, swirling wire frame ribbon, glowing circles and shining light rays. Download these dynamic and exciting vector graphics free for cool announcement cards, bright and happy party invitations or event promotional posters 湿 抽象 旋流 能量漩涡
Vector footage of nature symbols. Images of shiny water drop, garbage bin with tree branches, butterfly, tree, light bulb with leaves inside and elongated plant leaves. Free vectors to create company logos, application icons and ecology symbols. Icons for nature and plants visuals 性质 拖放 树 Ecology And Nature Icons
Ecology vector of a light bulb with some soil and a plant in it. The plant looks really fresh. The smart concept promotes the use of environmentally friendly energy sources. This vector could be used as a brand logo or as a part of the visuals for an eco-friendly campaign. Perfect for anyone who loves nature. Eco-Friendly Light by Jonathan Lenoble 植物 光 徽标 绿色能源
Chinese dragon vector silhouette graphics for your Asian culture and history design themes. Chinese dragons are the symbol of cosmic energy, Chi and the most powerful of Asian creatures. Standing for new beginnings, a Chinese dragon represents high achievements, success and prosperity 登记 龙 中文 自由龙
free CFL light bulb vector illustration set. This energy saving / low energy compact fluorescent lamp clip art is perfect for environmental designs related to global warming / green ideas / energy saving, etc 灯泡 概念 创造力 节能灯: 节能紧凑型荧光灯
Save Energy Vector Graphic. Cool Vector Composition. File: Corel Draw 9 Save Energy Vector Save Energy Bulb vector graphic can be downloaded for free 保存 能源 灯泡 Save Energy Vector Save Energy Bulb
Abstract purple Illustrator background with glowing lights, white flower outlines and twisting strands of energy. The vector graphics are full of motion and contrasts nicely with the soft purple color scheme. Download this fun vector backdrop for lovely greeting cards and pastel spring themes 抽象 圆点 旋流 Purple Energy Background
Different leaves surrounding World Environment Day promo, it’s also a good vector for any nature-related promo you want to make. Under Commons 4.0. Attribution License 环境日 行星 保存 叶子周围世界环境日