单词	淸朗如刀切的
释义	同Clear-cut
随便看	mechanical seal with inward leakage mechanical seal with low back pressure mechanical seal with outside mounted spring mechanical seal with outward leakage mechanical sector scan mechanical sediment mechanical sedimentation mechanical sediments mechanical segregation mechanical seismograph mechanical selector mechanical seller mechanical sensory system mechanical separate mechanical separation mechanical separator mechanical series circuit mechanical servo mechanical setting mechanical setup mechanical shake cleaning mechanical shaker mechanical shape mechanical sharpener mechanical shifter