1) Enhydris bennettii
黑斑水蛇
2) Enhydris docourti
腹斑水蛇
3) Natrix tessellata
棋斑水游蛇
5) black spot
黑斑
1.
Causes of surface black spot and cracks of sponge clamp were analyzed by means of appearance and metallographic observation.
采用宏观和微观组织观察,分析了海绵钳表面黑斑及开裂的原因。
2.
Oxide scale formation during cooling and pickling of Q195 and ST13 steel sheets at different temperature were studied to study the black spots on cold rolled pickled steel sheets.
针对冷轧酸洗钢板黑斑缺陷问题,对Q195、STl3钢在不同试验温度下进行了氧化铁皮的生成、冷却、酸洗试验,对试验后的试样和生产现场钢板的表面进行了微观分析。
3.
The examination was made on the black spot defects which occurred on the local areas of the surface of 2A12-T451 plate after anodized in chromic acid.
对ZA12－T451板材经铬酸阳极氧化后局部出现黑斑缺陷进行了试验研究。
6) freckle
[英]['frekl] [美]['frɛkḷ]
黑斑
1.
The microstructure of GH3044 with freckles was investigated by SEM and EDAX and the variation of liquid concentration during solidification and equilibrium phase transformation was calculated by the Thermal-Calc analysis.
利用扫描电镜和能谱分析研究了产生黑斑的GH3044组织,采用Thermal-Calc分析方法研究了合金凝固过程中液体成分变化,并计算了合金凝固时液体密度的变化,给出了GH3044合金平衡凝固时密度反转的范围。
2.
The research development of channel segregation (freckle) during solidification in multi-component systems is discussed, including the freckle characteristic, influencing factor and physical feature.
对多组元复杂体系(尤其是高温合金体系)在凝固过程中形成的通道偏析即黑斑的研究现状进行了评述,包括黑斑的存在方式、影响因素和物理特征等。
补充资料：黑蛇
1.黑色的蛇。 2.比喻铁杖。
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