But turning this push into a pull required more sophisticated optics -in Grier's case, a solenoid beam.
但是将这种推力转化为一种拉力需要更加复杂的光学,比如,在格里尔的设计中,是通过一种螺线管状光束。
But turning this push into a pull required more sophisticated optics -in Grier's case, a solenoid beam.
但是将这种推力转化为一种拉力需要更加复杂的光学,比如,在格里尔的设计中,是通过一种螺线管状光束。
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