flux

noun

1. in constant change

e.g. his opinions are in flux
the newness and flux of the computer industry

2. (physics) the number of changes in energy flow across a given surface per unit area

Synonym: flux density

3. a flow or discharge

Synonym: fluxion

4. the lines of force surrounding a permanent magnet or a moving charged particle

Synonym: magnetic fieldmagnetic flux

5. a state of uncertainty about what should be done (usually following some important event) preceding the establishment of a new direction of action

e.g. the flux following the death of the emperor

Synonym: state of flux

6. excessive discharge of liquid from a cavity or organ (as in watery diarrhea)

7. a substance added to molten metals to bond with impurities that can then be readily removed

8. the rate of flow of energy or particles across a given surface

verb

1. mix together different elements

e.g. The colors blend well

Synonym: blendmixconflatecommingleimmixfusecoalescemeldcombinemerge

2. become liquid or fluid when heated

e.g. the frozen fat liquefied

Synonym: liquefyliquify

3. move or progress freely as if in a stream

e.g. The crowd flowed out of the stadium

Synonym: flow

1. 变动;波动
If something is in a state of flux, it is constantly changing.

e.g. Education remains in a state of flux which will take some time to settle down.
教育还处于不断变化中，需要一段时间才能稳定下来。
e.g. ...a period of economic flux.
一段时间的经济波动

2. 流体
You can refer to a flowing mass as a flux .

e.g. ...the flux of cosmic rays.
宇宙射线流

1. 焊剂：溶剂包括N-甲基吡咯烷酮(NMP)或双甲对封装后框架外引脚的后处理可以是电镀(solder plating)或是浸锡(solder dipping)焊剂(flux)中进行浸泡,再放入熔融的焊锡中浸泡,最后用热水冲淋.

2. 助焊剂：浸锡也包括清洗工序,然后放到助 焊剂(flux)中进行浸泡,再放入熔融的焊锡中浸泡,最后用热水冲淋. 焊锡的成分一 般是63Sn/37Pb. 这是一种低共融合金,其熔点在183-184℃之间. 也有用成分为85Sn/ 15Pb、90Sn/10Pb、95Sn/5Pb的,

3. 熔剂：该组合物含有热可固化的树脂体系,包括至少一种环氧树脂和含酚的化合物如苯酚或酚醛树脂,作为催化剂的咪唑-酸酐加合物,和助熔剂(flux)的掺混物. 各种添加剂,如脱气剂,流动添加剂,粘合促进剂和流变改性剂也可以根据需要来添加.

4. 通量：不过目前LED发展照明应用还有诸多问题必须考虑,同时牵涉到规范标准以及散热、光学、电力设计,包括色温(CT)、通量(Flux)、光形(Distribution)等,且LED光源的颜色也十分重要,如停车场采用冷白光LED光源,将可降低人们犯罪频率.