Sentence examples for been operated for several from inspiring English sources

Although HJ-1A has been operated for several years, new developments for HJ-1A data processing are important for further research and application due to the new interference spectrometry technique used in the sensor.

They have been operating for several weeks in most of Sri Lanka, India and Thailand.

American experts therefore believe that Pyongyang must have another still-undiscovered parallel plant that has been operating for several years.

Bolsa Família grew out of a combination of other transfer programmes that had started at the municipal and state levels and had been operating for several years prior to the launch of Bolsa Família.

A small number of American Special Forces have been operating for several days in territory held by the coalition of rebel forces known as the Northern Alliance, helping to re-supply the insurgents and to improve the accuracy of American bombing raids against Taliban front-line forces.

Fortunately, the US National Oceanographic and Atmospheric Administration NOAAA) has a national network of water level monitoring stations distributed in regional scale that has been operating for several decades.

In February 2010, one such monitor broke, the document alleges, and prosecutors accuse Mr. May of ordering the rewiring of that monitor to defeat the legally required shutoff mechanism, allowing the machine to be operated for several hours without a functioning methane monitor.

The methanation reactor of (j) had a diameter of 0.4 m and was operated for several hundred hours between 1977 and 1981.

Then, the fuel was switched to dry ethanol and the cells were operated for several hours (100 h) with good stability.

One drug ring that Purdue monitored was operating for several years in the district of Rep. Judy Chu (D-Monterey Park).

From that time on she has been operated several times for retinal detachments and lens luxation.