Then as the star moves around the center of mass, you see that all these lines drift in unison.

随着恒星绕在，质量中心转动，你能看到所有这些线，一致得移动。

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Resetting the center position can create a jump movement upon tilt past a threshold, but is preferable in many applications to a slow drift or unknown initial state.

如果重设中心位置，那么在倾斜超过阈值后将产生一个跳跃的移动，但是在多数应用程序中，缓慢的移动或未知的初始状态比较可取。

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When zoom lens are used for military sighting, the drift of optical center caused by the change of focus length will reduce the sighting accuracy severely.

长焦变焦镜头用于军事瞄准时，变焦过程中较大的光中心漂移，降低瞄准精度。

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The cast includes Nick Nolte, Sean Penn, Elias Koteas, John Savage, Woody Harrelson, George Clooney, and John Travolta, with strong performances from younger actors like Ben Chaplin and Jim Caviezel, but they all drift in and out of the action, never staying long enough to hold center stage.

NEWYORKER: The Thin Red Line

Goudey, the director of the MIT Sea Grant's Offshore Aquaculture Engineering Center, has devised a system by which giant spherical cages of fish would drift underwater in circular ocean currents, or gyres.

FORBES: Magazine Article