半时

I was annoyed by hecklers during the last half of my speech.

我在作后部分报告时,对质问者感到厌烦。

Her words were inward and indistinct when she was in a state of half unconsciousness.

"她处于状态时,她说话声音低沉,模糊不清。"

The influence of the semibreadth of light source upon the measurement accuracy of the concentration of the solution is primarily discussed and then a corresponding expression is given in this paper.

本文对光源宽度在测量种溶液浓度时对其测量精度影响进行初步地探讨，并给出一个表达式。