1、Ensures the activities / events Log book is being accurately maintained.
確保特殊活動(dòng)/事件被正確地記錄，與保存。

2、He took his log book and some equipment and left in the mobile unit.
他拿著自己的日志簿和一些設(shè)備，開著汽車出發(fā)了。

3、Does your factory keep a quarterly maintenance log book on all electronic devices?
工廠保存一每季電子的裝置維護(hù)記錄書?。

log book翻譯