Round bottemed flask with bung and tube. black and white diagram / outline. Also with ink drop to show thermal expansion From GENERAL SCIENCE BY BERTHA M. CLARK, PH.D. (Gutenberg EBook 16593) 瓶 桶口 圆 bottemed 圆底烧瓶
glass containers chemistry laboratory experiment flasks labl Chemistry Experiment clip art 化学 实验 位移 化学实验剪贴画
black point science outline white thermometer flask ice stand lab filter funnel experiment melting retort Retort Stand And Thermometer clip art 软罐头 立场 温度计 黑点科学大纲白色温度计瓶冰站实验室过滤漏斗实验熔软罐头
science outline chemistry air lab laboratory physics apparatus thermal expansion experimant Thermal Expansion Of Air clip art 热 扩大 灰度 热空气膨胀的剪贴画
red water map symbol symbols int ocean international sea conical buoy nchart conicalbuoy International Conical Buoy Red clip art 国际 圆锥形 浮标 国际圆锥形浮标红剪贴画
red water symbol int ocean international sea maritime conical buoy nchart cylindricaltm conicalbuoy nautical Nautical International Conical Buoy clip art 航海 国际 圆锥形 航海国际圆锥形浮标剪贴画
science diagram round burner flask air bubbles grayscale trace heat classroom experiment bunsen bottemed thermal expansion Thermal Expansion Of Air clip art 热 扩大 灰度 热空气膨胀的剪贴画
red symbol int international maritime maps conical buoy nchart xshapetm conicalbuoy lighted International Lighted Conical Buoy clip art 国际 点亮 圆锥形 红色符号 Int 国际海事地图圆锥形浮标 Nchart Xshapetm Conicalbuoy 点亮
red map symbol symbols int international maritime conical buoy nchart xshapetm conicalbuoy International Conical Buoy clip art 国际 圆锥形 浮标 红色地图符号的符号 Int 国际海事圆锥形浮标 Nchart Xshapetm Conicalbuoy
green map symbol int international maritime conical buoy float nchart conicaltm conicalbuoy lighted International Conical Buoy Lighted clip art 国际 圆锥形 浮标 国际圆锥形浮标点燃剪贴画
red water simple ocean sea maritime conical buoy nchart conicalbuoy ecdis lateral nautical Nautical Lateral Conical Buoy clip art 航海 横向 圆锥形 航海外侧的圆锥形浮标剪贴画
mix chemistry lineart laboratory liquid biology experiment test Liquid Experiment clip art 液体 实验 瓶 液体实验剪贴画
water green symbol int ocean international sea maritime conical buoy nchart conicaltm conicalbuoy nautical Nautical International Conical Buoy clip art 航海 国际 圆锥形 航海国际圆锥形浮标剪贴画
