direct visual observation

基本解释

The recorder is suitable for mobile observation because of its visual records presenting direct results and its easily done maintenance and operation.
因为采取了可见记录，观测结果更直观，维修管理方便，适于流动观测。
The so-called perceptual power refers to the expressional desire, which is from the main body life and bases on a person's direct visual observation, the experience and the ponder to the life.
所谓感性动力，是指从主体生命内部产生出来的，基于个人对生活的直接观察、体验、思考、理解而涌动出来的表达欲望。
The bayonet-type connecting mechanism with the advantages of no need of direct visual observation, remote operation, locking function and high reliability is used as an inner part of a reaction pile.
该装置提供了一种无需直接目视，远程操作，带锁紧装置的，高可靠性的反应堆内部构件的刺刀式连接结构。
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