On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.<br>A:mimimum oxygen content line<br>B:critical displacement line<br>C:critical dilution line<br>D:upper threshold limit

On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
A:mimimum oxygen content line
B:critical displacement line
C:critical dilution line
D:upper threshold limit

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10252701】个 (题库试题定时更新)