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Pupils usually have difficulty with words ending in sts, dth, pth.
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No fewer than a quarter of a million free parking spaces are available on the sts.
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Some officials estimate that betw six or seven thousand persons are now begging in the sts.
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STS-133 will be a six member crew: Discovery's retirement is well earned.
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Etoposide given by 72-h infusion is inactive as second-line chemotherapy in STS.
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NASA has replaced 59 cracked windows since the spaceshuttleprogram began.
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Mr Hurley was even on the final launch of the spaceshuttleprogram.
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The accident disrupted the spaceshuttleprogram for 32 months.
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But Russia's spaceshuttleprogram, the Energia-Buran, was its last big investment in R&D.
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NASA's spaceshuttleprogram has encountered both glowing support and heated opposition throughout its history.
Usage of space transportation system in English
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The shuttle-or spacetransportationsystem, as the assemblage is known-is basic to future developments in space.
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Being able to refuel on orbit is key to an agile and fully reusable spacetransportationsystem.
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Jan. 5, 1972 - President Richard Nixon signs a bill authorizing $5.5 billion to develop a reusable winged spacetransportationsystem called the space shuttle.
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It's called the SpaceTransportationSystem, but it quickly became known as the Space Shuttle.
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NASA convinced Congress to designate the space shuttle as the national SpaceTransportationSystem (STS).