The laser-pointing device connected to and fixed on the pen body provides a visible laser to point information in remote place.

激光指向器是连接并固定于该笔身，提供一可见激光，以指示该远距的讯息。

youdao

The mixture matrix of multi-path channel can be estimated using a fast fixed-point algorithm, and then the delay information of channel can be obtained.

该方法采用固定点ica算法来估计多径信道的混合矩阵，从而提取信道的延迟信息。

youdao

Any such information would be no more than snapshot at a fixed point in time, he argued.

BBC: Welfare reform: A chance to curb fraudulent payments?