1) groove defect
凹缺陷
1.
Based on our experiments,we presentin the paper the diamond nucleation mechanisms of the groove defects on the substrate surface.
提出了金刚石在衬底表面凹缺陷内成核的理论，指出凹缺陷尺度对于金刚石成核有着决定性作用，合适的凹缺陷将使成核率达到最大。
2) defect of pit
凹斑缺陷
3) pit
[英][pɪt] [美][pɪt]
凹坑缺陷
1.
Safety assessment of surface pit in penstock;
压力钢管表面凹坑缺陷的安全评定
2.
The stress magnification factor (SMF) of a pit, which is proposed as a new concept in the study, is calculated with three dimensional finite element method.
表面凹坑缺陷是水电站引水压力钢管中的一类常见缺陷。
4) dropping,sagging
凹变[搪瓷缺陷]
5) dolly dimple
小凹陷<铸铁搪瓷缺陷>
6) concave bow
凹进翘曲[平板玻璃缺陷]
补充资料：凹模壁厚及凹模垫板尺寸
型腔壁部投影面积 壁 厚， 毫 米
F， 厘米2 h1 h2 h3 h4 h5
<5 15~20 30~40 <=10 15~20 30~40
>5~10 20~25 40~50 10~15 20~25 40~55
>10~50 20~30 50~60 15~20 20~30 55~65
>50~100 30~35 60~75 20~25 30~40 65~70
>100~200 35~40 75~85 25~30 40~50 70~75
>200 >40 >85 30~35 50~60 >80
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