第二个必要的条件是，操作者可以调节感光，曝光，快门以及压缩质量，以手控的方式拍摄。
The second obligatory condition is the possibility to shoot in manual mode, when sensitivity, exposure, diaphragm, and the compression quality can be adjusted by the user.
一个安全的无线连接装置，把车辆的行驶速度、电池寿命以及其他关联信息一并传送可以手控的仪表板上。
Speed, battery life, and other connectivity information are all conveyed over a secure wireless connection to a handheld device that can be mounted on the dash.
它具有可手控的永久磁性基座、独特的刀具结构、有效的火花控制和极大的便携性，适用于特殊环境下的钻孔作业。
It has permanent magnet base, unique cutter structure, effective spark control and portability. It suited to special environment to drill.
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