Plane joints
[医] 平面关节
🧩 词语组成解析
n. 关节；连接, 接头；运动付（joint的复数形式）
🗣️ 情景例句
Lacks tact.
不够机敏。
We must not lie down, and cry, God help us.
求神不如求己。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。