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Status function The relay station ancient times transported in our country has the important status and the function, in the communication method very primitive situation, the relay station was shouldering each aspect and so on politics, economy, culture, military information transmission duties, to a certain extent was also a physical distribution information part, was also one kind of specific network... [read more]

In the morning, is celebrates the motherland birthday 62nd anniversary. First session which sponsors by the Chinese folk literary arts wonder stone specialized art committee[welcomes National Day Loulan desert jade characteristic jewelry exhibition]“The Chinese good luck stone-paved road city” begins in Zhongguan Village numerical code building A place three. This exhibition finished from September... [read more]

The LED illumination promotes, the potency in the technology to enhance gradually, the unit cost drops under lead, the field thought that next year will enter the LED illumination first year officially, formerly illuminated the market all by Europe and America primarily, pointed out according to the development facility, last year the mainland illumination market size has surpassed the US officially,... [read more]

10, active PFC What are the characteristics? A: active PFC input voltage from 90V to 270V; power factor above 0.99, and has low loss and high reliability, etc.; can be used as auxiliary power supply, eliminating the need for auxiliary power transformer; output DC voltage ripple is small Therefore the use of active PFC power supply does not require the use of large-capacity filter capacitors. 11, passive... [read more]

Everybody will buy the lamps and lanterns most to pay attention to its leakage security, but another kind of security - - “the light biology security” in fact also will be worth taking seriously. From is responsible for the photoelectric inspection expert place finding, “the light biology security” the examination unqualified lamps and lanterns possible to illuminate the human the wound, but also possibly... [read more]

Shoots the rib mother-of-pearl shell the shell median size, the chitin is thin, the shell shape is slightly slanting, assumes the square shape most, but also has the anomalous shape. The shell both sides different, two shells slightly different, shoots the rib mother-of-pearl shell lower valve to be raised, the upper valve is slightly even. The first ear is obvious, the latter ear slightly obviously... [read more]

(four) reports the request. 1. meets the declaration notice overall requirement. 2. by the Local authority (Department responsible for the work) or the large enterprise group (for example south electrical network, Electricity company, transportation group, the broad Sheng group, broad hundred groups and so on) coordinates the declaration. Reported that the unit must form the work team, completes the... [read more]

The countryside wedding ceremony's wedding ceremony feast tabletop may green in vain primarily: The green table skirt, the white tablecloth, lets the human be unable to restrain to think on the cushion cushion green grass like the cloud flock of sheep; But has on the village countryside wedding ceremony character and style white porcelain tray to put a green table napkin, newborn, the furry young Bai... [read more]

from January 9th, 2010 to 10th, by the national illumination electric appliance standardization Technical committee ray radiation measured that the weighing out Technical committee (i.e. “ray radiation measured weighing out sign committee”) (i.e. “measurement entrusts specially” with the Chinese Illumination Academic society Measurement Test Specialized Committee) jointly sponsors, the ray radiation... [read more]

Negotiable securities Times Reporter Huang Yu JP Morgan passes the issue report to say greatly, although the global economic speed-up postpones, but raw material demand strong supports the commodity price rise sufficiently, and suggested that the investor has the commodity cash,jewelry exhibition will favor the gold and the copper number will rise. JP Morgan passes this greatly the report name which... [read more]