concave-surface 水面下凹
concave surface key 内凹齿钥匙
stable concave surface 稳定凹曲面
regular concave surface 规则凹坑表面
concave surface recovery 凹表面恢复
conducting concave surface 凹形接地面
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It arises on both sides from the concave surface of the kidney known as the hilum. It is between 20 and 30cm long and can be affected by a number of disorders.
输尿管起始于两个肾脏的凹面(也就是肾门),长20到30厘米,可能会受到一些病症的影响。
A longitudinal channel extends along the concave surface.
纵向通道沿所述凹面延伸。
This paper investigates the inverted L antennas mounted on a conducting concave surface.
系统地研究了架设在凹形接地面上的倒l天线的电特性。
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