It indicates the relative size or quantity of one part compared to another or to the whole. For example, in a class of 20 students, if 10 are male, the proportion of male students is 1/2 or 50%. Frequency, on the other hand, refers to the number of times an event or a value ...
Once you measure the period of a pulse waveform , the frequency is found by如果你测量了一个脉冲波形的周期,则其频率可以? using another setting.通过其他设置得到。using another type of instrument.通过使用其他仪器得到。measuring the duty cycle.通过测量占空比得到。finding the reciprocal of the period....
There are currently no studies evaluating the feasibility of iPrEP for the prevention of HIV infection in MSM. For example, we do not know how often MSM have sex and are potentially exposed to HIV. If most MSM are exposed on a daily basis, iPrEP is not a feasible prevention strategy. I...
The computing method for naturalfrequencyof feeding machine is introduced. 介绍了吐丝机固有频率的电算方法. 期刊摘选 This allows the ear nerve to be tempered,frequencynoise damage, there is a certain subduction. 这样可以让耳朵的神经得到锻炼, 对低频噪音的伤害, 有一定的消减作用. ...
Once you measure the period of a pulse waveform, the frequency is found by( ) A using another setting B measuring the duty cycle C finding the reciprocal of the period D using another type of instrument 相关知识点: 试题来源: 解析 C ...
Now the instrument is ready to measure frequency. In most cases, the red test lead should be inserted into the terminal labeled “Hz,” and the black test lead should be inserted into the terminal labeled “COM.” Some models can measure voltage and frequency simultaneously, and some require...
aSuch literal translations often fail to take account of one simple fact of language and translation, namely that not all texts or text users are the same. 考虑到不是所有的文本或文本用户是相同的一个事实的这样经常直译出故障语言和翻译,即。[translate] ...
a危险化学品泄漏 Dangerous chemical divulging [translate] athe measure is selected on the basis of the frequency content of the vibration present, the design of the machine, the type of analysis to be conducted, and the information sought. 正在翻译,请等待... [translate] ...
The frequency-domain technique is applied to measure the photodegradation rate of fluorescein in aqueous solutions. The illuminating light is modulated, and the changes in fluorescence from the illuminated region are detected synchronously. A constant flow rate is imposed on the fluorescein solution to ...
Vibration, periodic back-and-forth motion of the particles of an elastic body or medium, commonly resulting when almost any physical system is displaced from its equilibrium condition and allowed to respond to the forces that tend to restore equilibrium.