这是原文一部分，有点长，我用在线翻译和软件翻译都试了，差太多。先谢谢各位啦，之后追加50分，谢谢啦。！！！
By the end of the 1930’s, Willem Elenbaas (Philips, the
Netherlands) theoretically predicted a rise of mercury lamp efficacy
with the increase of the arc power loading. This was effectively
verified after the invention of quartz-to-tungsten graded seals in 1935
(Cornelis Bol - Philips). The next year, Philips was then able to market the first low-power high-pressure
(20 atmosphere) lamp, the HP300 (75W). This was followed by a breakthrough source: the water-cooled
SP500W working at 80 atmospheres (Philips). Not only these lamps had a better efficacy (40 and 60 lm/W
respectively), they also showed improved color rendering properties owing to the higher operating pressure.
The SP500W lamp was primarily designed and
used for film projection and floodlighting
applications, while the HP300 remained favored for
street and industrial lighting due to its still
insufficient emission of red light. This problem of
color rendering pushed the research toward colorimproved
lamps that used an integrated incandescent
filament (acting also as a ballast - 1941) and/or a
phosphor coating on the inner surface of the outer
bulb to transform useless ultra violets into red light,
thus filling the gap in the mercury spectrum.
In 1934, cadmium sulfide was found to be a suitable
fluorescent material, although it provided only a mild color
correction. The introduction of the color-corrected mercury
lamp was made possible with the elaboration of manganeseactivated
magnesium germanate and fluorogermanate in
1950, which improved greatly the color rendering index and
had a beneficial effect of the lamp efficacy. Three years
later, tin-activated orthophosphate was introduced, and in an
attempt to have proportionally more red emission, “deluxe”lamps with a rosy glaze on the outer bulb were marketed for
a short while by a number of manufacturers (1956). Then in
1967, the hugely successful europium-activated vanadate
and phospho-vanadate phosphors inherited
from color TV technology were introduced
and are still in use today. These modern colorimproved
mercury lamps have a color
rendering index (CRI) of 65 against 15 for
clear lamps and a luminous efficacy of 60
lm/W
还有一部分，大家帮我啊
原文是一个pdf文件，我复制到word里了，希望大家能帮我啊 ，还有部分，发不出来，谢谢各位！！！