1.  cursor
2.  nonius
3.  vernier

• 1. 游标: Cursor | vernier | nonius | PL SQL | cursor
• 2. 游标卡尺: vernier caliper | nonius | vernier scale | slide caliper | vernier calipers
• 3. 游标尺: vernier | slide gauge | vernier cursor | vernier calliper gauge

更多释义

• 1.在游标定位在行中时，锁定这个被应用程序的某个事务访问的任何一行。
  Locks any row accessed by a transaction of an application while the cursor is positioned on the row.
  dict.yoduao.com
• 2.在本例中更适合使用逐字插入，因为这里的目标是精确地复制游标上方的文本。
  Verbatim insertion is more appropriate in this example, since the aim is to exactly copy the text above the cursor.
  dict.yoduao.com
• 3.打开将被返回的游标。
  Open the cursors to be returned.
  dict.yoduao.com

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