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- It illuminates that the main part which transit cutoff region is high-frequency ponderance. 说明通过截止区主要是高于截止频率的高频分量。
- Then the graph of the changes of group and energy velocity with the length of cutoff region and the main frequency of the wave packet is received. 计算了波包穿越势垒的群速和能量速度,得到群速和能速与截止区长度的关系图,以及群速与激励源的工作频率的关系图。
- As same as dissertation above, the main part which transit cutoff region is high-frequency ponderance, and low-frequency ponderance is attenuated badly. 模拟发现,通过截止区主要是高于截止频率的高频分量,低频分量衰减严重。
- When the length of cutoff region is so long or the main frequency is so high to approach the cutoff frequency, the main frequency of wave packet is so high to exceed the cutoff frequency. 电场频谱图显示波包的频谱明显上移,而且当截止区长度足够大时,或者输入波频率趋近于截止区截止频率时,波包的峰值频率甚至超过了截止区的截止频率。
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
- Storms spring up easily in this region. 这个地区很容易发生风暴。
- He is earning a salary in the region of25,000. 他当时的薪金在25,000英镑左右。
- A storm that cut off power to the whole region. 切断了整个地区电力供应的暴风雨
- A planar region bounded by a circle. 圆形区，圆形空间被圆所包围的一个平面区域
- A vineyard or wine-producing region in France. 克鲁法国的葡萄园或葡萄酒生产区
- Grade cutoff is sharp within inches. 数英寸内的品位变化很急剧。
- Food and fuel were scarce in this region. 这地区食物和燃料都很缺乏。
- There used to be a military base in the region. 这地区过去有个军事基地。
- He is an authority in the region of chemistry. 他是化学界的权威。
- I have a pain in the lumbar region. 我腰部疼痛。
- The cutoff does not have to be taken to infinity. 这是否就是说：只要发散常数被吸收或被处理掉了，就不在乎它还取不取无穷大极限?
- There used to be a lot of troubles in that region. 那个地区过去动乱不已。
- Sharp cutoff shows code enforcement is good. 明显减少表明规范的执行情况是好的。
- Nobody likes to live in that desert region. 没有人喜欢生活在那个沙漠地区。
