The material used to permanently seal annular Spaces between casing and borehole walls.
用于永久封隔套管和井壁之间的环型空间的材料。
A plurality of vertically long annular blanks 3 are punched out from the material 2 having a prescribed width, and the vertically long annular blanks 3 are formed on the annular ring-shaped member 1.
由给定宽度的坯料2冲压出多个长度方向长的环状的毛坯3，将该长度方向长的 环状的毛坯3成形为圆环状的环状构件1。
A work machine tire (10) includes an annular body (11) of elastomeric material that includes a middle radial region (12).
一种作业机器轮胎(10)包括弹性材料制成的环形本体(11)，所述环形本体包括中间径向区域(12)。
The imaging system formed by an annular left-handed material (LHM) lens as well as the evanescent waves in the lens are simulated numerically with a finite-difference time-domain (FDTD) method.
利用时域有限差分法模拟了左手圆环形透镜的成像和透镜中的倏逝波。
A raw material ageing ring trough concentric with kiln bottom is arranged on site at inner side of annular kiln bottom and blank making machine is arranged in the center of the site.
在环状窑底内侧的场地设置一个与窑底同心的环形原料陈化仓槽，制坯机设置在场地的中心部。
A raw material ageing ring trough concentric with kiln bottom is arranged on site at inner side of annular kiln bottom and blank making machine is arranged in the center of the site.
在环状窑底内侧的场地设置一个与窑底同心的环形原料陈化仓槽，制坯机设置在场地的中心部。
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