您要查找的是不是：
- a low frequency blood group By抗原(一种罕见血型)
- low frequency blood group antigen swa(低频血型)抗原, 低频(率)血型抗原, 低频度血型抗原, 低频率的血型抗原
- low frequency blood group 低频率血型
- The abnormal colours of seedlings turned a low frequency. 颜色异常的苗木出现频率较低。
- If it is a low frequency sound, it is processed as an analog signal. 对低频声进行传统的处理。
- high frequency blood group antigen 高频(率)血型抗原, 高频率血型抗原
- A sound with a high frequency is said to be high-pitched and a sound with a low frequency is low-pitched. 高频率的声音有较高的音调,低频率的声音音调则较低。
- The mask acts as a low frequency spatial filter whose effect is to enhance rendition of fine detail. 掩模就象一个低频空间滤波器，其效果是增强细节的重现。
- First, the capacitor inserted allows a low frequency "extension" due to the resonance between the transformers inductance and the capacitance value. 第一，耦合电容和变压器初级电感之间的谐振可以容许更好的低频延展。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- The hearing aid determines if the sound is a high frequency sound or a low frequency sound. 通过100个滤波器和音素分析器决定哪些声音是高频或低频声,哪些声音是元音和辅音。
- All he does is put mice on a platform that buzzes at such a low frequency that some people cannot even feel it. 鲁宾只是将老鼠摆在轻微震动的平台上，震动频率低到有人甚至浑然不觉。
- There is a low frequency and great amplitude on Benfield frame of Jianfeng chemical plant. 建峰化肥厂苯菲尔车间框架存在大幅低频振荡。
- Talking in a low voice were a man and a woman. 低声讲话的是一男一女。
- In sound recording,a low frequency noise usually produced by regular variations in the speed of a system's mechanical component. 录音技术中的一种低频噪声，通常由于系统机械部件的速度有规律变化而引起。
- Lead will fuse at quite a low temperature. 铅会在相当低的温度下熔化。
- The economy of the country is at a low ebb. 该国的经济处於衰退阶段。
- When a caller presses a key on a telephone keypad, the telephone produces two separate tones: a high frequency tone and a low frequency tone. 呼叫者在电话键盘上按键时,电话会发出两种不同的音调:高频音调和低频音调。
- How do they manage to subsist on such a low wage? 他们这点工资怎么糊口？
- In sound recording, a low frequency noise usually produced by regular variations in the speed of a system's mechanical component. 录音技术中的一种低频噪声，通常由于系统机械部件的速度有规律变化而引起。
