您要查找的是不是：
- binaural masking level difference 双耳掩蔽级差, 掩蔽级差
- binaural masking level 双耳掩蔽级
- Binaural Masking in Two Channel Stereophonic Reproduction 双通路立体声条件下的双耳掩蔽
- He wore a mask so that no one should recognize him. 他戴了一个面罩，使别人认不出他来。
- I'd like a room on the upper level. 我想要楼上的房间。
- Capable of masking or neutralizing odors. 可除臭的可以掩臭或中和臭气的
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- I hope you'll be on the level with me. 我希望你对我坦率布公。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- Keep a level head and phone the Fire Department. 保持冷静，打电话给消防署。
- Sham is sham and the mask must be stripped off. 假的就是假的，伪装应当剥去。
- He tried to mask his disappointment with a smile. 他试图以微笑来掩饰他的失望。
- The mask fitted tightly over his face. 他用面具把脸蒙得严严的。
- A football field should be level. 足球场地应该平坦。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- They did so under the mask of charity. 他们是打着慈善的幌子这么做的。
- I have told the whole story on the level. 我已经诚实地把整个事情经过讲出来了。
- Find level ground for the picnic table. 找一处平坦的地面放野餐的餐桌。
- This mountain is 1,400 meters above sea level. 这座山海拔1,400米。
- He has a level head in emergencies. 他在危急关头能镇定自若。
