圈

• Mark the wrong word with a circle .
  把那个错字圈了。
• G is a maximal acyclic graph .
  G是一个极大无圈图。
• The helix makes a complete turn every 3. 6 residues .
  每个36个残基，螺旋正好转一圈。
• Both types are known to be productive of oil and gas .
  这两类圈闭是盛产石油和天然气的。
• She makes a slow turn, taking in the disorder .
  她慢慢地转了一圈，凌乱的状况都看在眼里。
• An edge is a bridge if it is not contained in a cycle .
  一条边是桥当且仅当它不包含在圈中。
• The leading car crashed midway through the tenth lap .
  领先的那辆赛车在第十圈的中途撞毁了。
• The bearing's inner races were a tight fit to the table shaft .
  轴承的内圈与台轴采用紧配合。
• All three basins are enclosed by the 1900m depth contour .
  三个海盆都被1900米的等深线所圈闭。