负

We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium, by bombardment with alpha rays.

我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。

Forward alternating current small signal method can be used to measure the capacitance-voltage characteristic of light-emitting diodes, and negative capacitance can be observed.

利用正向交流小信号方法对发光二极管的电容-电压特性进行测量，可以观察到发光二极管中的负电容现象。

Using the forward alternating current small signal method to measure the capacitance-voltage characteristic of an LED, negative capacitance can be observed.

利用正向交流小信号方法对发光二极管的电容-电压特性进行测量，可以观察到发光二极管中的负电容现象。

A cycle is one complete reversal of an alternating current or voltage from zero to a positive maximum to zero again and then from zero to a negative maximum to zero again. The number of cycles per second is the frequency.

周期周期是指交流电流或电压从零到正最大值再到零，然后从零到负最大值再到零这样一个往复的过程；而频率则是指每秒可完成的周期数。

Cycle A cycle is one complete reversal of an alternating current or voltage from zero to a positive maximum to zero again and then from zero to a negative maximum to zero again.

周期 周期是指交流电流或电压从零到正最大值再到零，然后从零到负最大值再到零这样一个往复的过程；而频率则是指每秒可完成的周期数。

The Prologo for the Colombian edition is being written by a dear friend here, who is a "star" in the alternative medicine field. He has two clinics now and his patients are from the cabinet of the Present Presidential administration.

亚伦比亚译本的序言是我这里一个亲密的朋友所写的，他也是一个在"替代医学"领域极负盛名的专家，他目前有两个诊所，他的病人有的是本届总统府内阁成员。

It was observed that n-butylamine played a key role in the transformation of aluminosilicate gel to ZSM-5 layer.

经过一次合成，分子筛在载体上的负载量可达15-30％。

In chapter 2, based on Amari\'s alpha divergence, a non-negative matrix factorization algorithm is introduced.

在第二章，基于Amari alpha散度，我们引入了一类基于非负矩阵分解的盲信号分离算法。

The love of amateurism and the belief that what is important is how you behave on the field , not whether you win or lose , comes from a time when the only people who played games seriously did not need to earn their living .

热衷于提倡业余体育，认为重要的是在运动场上的表现而不是谁胜谁负，这些都已经过时了，当时只有认真从事体育活动的人而无需挣钱糊口。

We had found that heat absorbents can be used as effective flame retarding additives to those explosives whose heat decomposition mechanisms are mainly decided on temperature, such as AMATOL, while char forming promotors to those explosives in which molecules exsist char forming group, such as TNT, RDX, HMX, etc.

文中推导出的点燃公式和实际情况基本相符，本文还用负催化原理，热点燃的稳态理论以及链反应原理解释了出现自熄的原因并导出了出现自熄的判据。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。