美国咨询公司NexantInc.的技术主管爱德华•格拉泽(EdwardGlatzer)说，因为人们在环境和安全方面一直对煤炭心怀疑虑，所以煤炭的名声不怎么好。
'There is a stigma about coal because of its historical environmental and safety concerns, ' says Edward Glatzer, director of technology at Nexant Inc., a San Francisco-based consulting firm.
根据一份价值2610万美元的合同，爱莲特技术系统公司（ATK）将为美国国防部创造出一个虚拟的太空环境，用于空间系统硬件的试验。
Alliant Techsystems Inc. (ATK) will create a virtual space environment that will be used to test space hardware for the Defense Department under a ＄26.1 million contract.
根据一份价值2610万美元的合同，爱莲特技术系统公司（ATK）将为美国国防部创造出一个虚拟的太空环境，用于空间系统硬件的试验。
Alliant Techsystems Inc. (ATK) will create a virtual space environment that will be used to test space hardware for the Defense Department under a ＄26.1 million contract.
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