collimate的一般过去时怎么写？

collimate的第三人称单数（三单）为：collimates...

v.校准...

collimate的音标：collimate的英式发音音标为：['kɒlɪmeɪt]collimate的美式发音音标为：['kɒləˌmeɪt]...

An incandescent bulb and fiber were used to collimate light into this speedometer indicator.白炽灯泡和光纤利用使光平行打入到里程计指标....

collimate的现在进行时为：collimating...

collimate的现在完成时为：collimated...