1) concave ball
凹圆形钢球
2) circular dies
圆形凹模
3) cove
[英][kəʊv] [美][kov]
凹圆形
4) spherical pit
球形凹坑
1.
The calculation methods of section area of spherical pits on the surface of spherical components are studied.
研究了球壳表面球形凹坑断面面积的计算方法,建立了计算公式,应用API579局部减薄2级评定方法,分别对外壁和内壁含球形凹坑的球壳建立了剩余强度系数RSF的计算方法;分析了球壳凹坑RSF计算结果的规律性,用表格按球壳凹坑的两个参量α和g列出了能直接用于工程评定的含凹坑球壳的RSF值,并提出了内壁含球形凹坑球壳免于评定的简便判据。
5) semi-cylindrical canyon
半圆形凹陷
1.
Scattering of a semi-cylindrical canyon and a crack with incident SH waves;
SH波对浅埋裂纹的半圆形凹陷地形的散射
2.
Scattering of SH-wave by a semi-cylindrical hill and a semi-cylindrical canyon in half-space was studied.
将整个求解区域分割为2部分,在其中分别构造满足边界条件的位移解,通过移动坐标使之满足“公共边界”以及半圆形凹陷表面上的边界条件,从而建立起求解该问题的无穷代数方程组。
6) hollow regular cone
凹形正圆锥
1.
It is reported that the quantity of a hollow regular cone divided by the quantities of contour generations on it is the quantity of the depth that one contour line adjoins the next one,and introduces the making method of the hollow regular cone and its application.
用凹形正圆锥的高除以等高线数为相邻等高线的深度差值 介绍了凹形正圆锥的制作方法及应
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