弦乐器琴弦的振动中包含基频与泛频,在一定位置上可抑制掉某些频率,便会出现演艺界定义的“泛音”效果.Base band and overtone will be generated at the same string of stringed instrument oscillate.除了基音和各种泛音以外,这种体系不能发出其他的音.The system cannot be sound any notes other than the f...
There has always been a difference between community radio and commercial radio.社区广播电台和商业广播电台一直是有区别的。It is nearly always women who are the primary care givers.从事初级保健护理工作的几乎都是女性。She's going to be fine. She always was...
Dizziness, anxiety, syncope, and anorexia have also been reported as well as profuse tearing and photophobia.头晕 、 烦躁不安 、 昏厥和食欲不振以及落泪不止、畏光也有报道.Then the policeman recognised me, breaking into profuse apologies.然后这个警察认出了我，一...
The amount of secondly ettringite is affected by the curing condition.二次钙矾石的形成量受养护条件的影响.The effect of ettringite structural transformation on expansive behavior of expansion cement was found.研究低钙粉煤灰对氧化镁微膨胀水泥的膨胀性能与水泥石孔结构的...