工作帽

在建筑工地上所有工人都要戴硬的工作帽。

All workmen are required to wear a hard cap AT the construction site .

14.28%不戴工作帽或未穿着工作衣帽，7.61%的指甲过长或戴戒指；

15 of them did not wear work cap and clothes , accounting for 14.28 % . 8 of them had long finger nail or ring , accounting for 7.61 % .

对变电站中工作人员安全帽佩戴情况的智能视频监视，本文提出一种基于颜色空间和质心位置的检测算法，并通过实验对其效果进行了验证。

According to monitor the wearing of safe helmet of the workers in substations , this dissertation introduces a detection algorithm which is based on color space and centroid position .

普采工作面使用木柱帽存在的问题及解决办法

Problems and Related Measures With Wood Timber Cap in Conventional Face

各班组负责人应监督员工工作服和工作帽的清洁度。

The persons in charge in the team shall supervise the cleanliness of the uniforms and working caps of the staff .

结果表明，两种喷头的喷量均随工作压力和喷头帽回转角度的增大而加大；

The results showed that , the flow rates of the two nozzles rose with the increase of the working pressures and also with the nozzle cap turning back .