The activated carbon which can be rejuvenated by roasting procedures has improved the economy considerably . 已证实研制通过煅烧可再生的活性炭具有相当大的经济效益。
A prescription drug costs millions to research and takes five, six years before it's ready for selling . 研制一种处方药品要耗费几百万资金，往往需要五六年时间才能出售。
Large electronics companies developed television , but baird pointed the way with his experiments . 大型电子工业公司研制出了电视，但这有赖于贝尔德的实验为此指出了方向。
Two color pyrometers were developed to solve the problem of signal attenuation by intervening smoke or fumes . 为了解决由烟或气所引起的信号衰减问题，研制出了双色高温计。
Development of such distributed feedback heterostructure lasers requires crystal growth on corrugated layers . 研制这种分布反馈双异质结构激光器要求在皱折层上生长出单晶层。
Such principles should be helpful to the development engineer seeking to improve the stability of an existing engine . 这种原则要有助于研制工程师探索现有发动机稳定性的改进方法。
A different approach to build an imaging detector has been taken by lick observatory in developing the image-dissector scanner . 另一种成象探测器是黑克天文台所研制的析象管扫描器。
Already laser guns are being developed which could kill an enemy or bring down an air-plane or a missile at a great distance . 能在远处杀死敌人、击落飞机或导弹的激光炮已在研制之中。
Arl began work on developing degaussing systems to neutralize our ships' magnetic fields and thus protect them . 海军部研究实验室开始研制消磁系统以抑制我们舰艇的磁场，从而达到保护舰艇的目的。
A factor in determining the heartbeat of current research into combustion instability phenomena is the status of engine development program . 研究燃料不稳定性的规模，完全取决于发动机研制计划的状况。
