|
|
| 1. | Some changes ocurred in Deppler spectrum as spike and notch at diastole,as prominence at diaslole during |
| （2）频谱形态出现一些特民改变，如重度失血时频谱舒张期出现小峰及凹陷．补液早期频谱舒张期凸起等。 |
|
|
| | |
| 2. | A pointed tool, such as a spike or chisel, used for breaking rock or ore. |
| 钢楔一种如尖铁或凿子等有尖的，用于劈裂岩石或砂石的工具 |
|
|
| | |