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An aerial view of the Whakaari, also known as White Island volcano, in New Zealand, Dec 12, 2019. [Photo/Agencies]
Among them, vaccines from China's CanSino Biologics Inc, US biotechnology company Moderna Inc and British pharmaceutical giant AstraZeneca Plc are already in clinical trials.
An X-ray spectrometer will target spots as small as a grain of table salt, while an ultraviolet laser will detect the "glow" from excited rings of carbon atoms.
An example is the construction of a 115-kilometer highway from Thies to Touba. In 2015, China and Senegal signed an agreement providing financing for the project from the Export-Import Bank of China.
An estimated 450,000 daily waterway passenger trips are expected to be made during the May Day holiday, about 50 percent of the number made during the holiday in 2019. Daily air passenger numbers are estimated to hit 580,000, about 33.2 percent of that for the same period last year.
