1) blue chalk
蓝粉笔
2) chalk
[英][tʃɔ:k] [美][tʃɔk]
粉笔
1.
The pen and chalk,two kinds of hard calligraphy tools,are widely used in the education field in the modern society.
钢笔和粉笔都属于硬笔,这两种笔使用十分广泛,是现代社会文字书法和教育战线必不可少的书写工具。
4) French chalk
粉笔，粉块
5) blue phosphor
蓝粉
1.
The phase evolution during the synthesizing process of blue phosphor precursor by wet-solid mechanochemical processing;
湿固相机械化学法制备蓝粉前驱体过程中的物相转变
2.
The two blue phosphors which were synthesized with Al(OH)3 and Al2O3 possessed different properties.
分别用Al(OH)3和Al2O3合成的蓝粉,其色品坐标接近,发射波长相同,但用Al2O3合成的蓝粉的相对亮度高,耐高温性好。
6) Chalk / Charcoal
粉笔和炭笔
补充资料：粉笔
在黑板上写字用的条状物，用白垩、熟石膏粉等加水搅拌，灌入模型后凝固制成。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条