You'll need to lock the focus if you have an auto-focus camera because most of them focus on whatever is in the center of the viewfinder. Try it yourself.
如果您使用的是自动对焦相机，您需要先锁定焦点，这是因为大多数相机将焦点对准取景器中心的物体。
Based on PKM gasifier coal lock hopper auto feed coal DCS system program's development and application, PKM gasifier can auto feed coal and produce gas safely and steady.
通过对加压气化炉煤锁dCS自动加煤系统的开发与应用，来实现PK M气化炉加煤的自动和优化控制，以确保气化炉稳定运行。
Auto-tracking System has two kinds of target lock-on mode such as auto lock and manual lock.
自动跟踪系统有自动锁定工况和人工锁定工况两种目标锁定方式。
A measurement system for gas dynamic concentrations based on TDLAS was constructed by using an auto-balanced photo receiver and a digital lock-in amplifier.
基于自平衡激光接收器和数字锁定放大器构造了TDLAS汽车尾气动态浓度测量系统。
The number lock key toggled auto-run, and a lot of the action was set to right click on the mouse.
“numberlock”键定义为自动快跑，鼠标右键可以用来完成很多行动。
The number lock key toggled auto-run, and a lot of the action was set to right click on the mouse.
“numberlock”键定义为自动快跑，鼠标右键可以用来完成很多行动。
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