Visual biofeedback trainers allow professionals and their patients to see as well as measure their contractions, thus helping them gauge their progress.
通过可视的生物反馈训练器，专业人员和病人可以看到并测量肌肉收缩，帮助测量进度。
The L Gauge is a reliable swing arm level monitor designed for smaller diameter tanks. It provides a visual indication of the liquid level in your tank.
稳定的摇臂式液位检测器，用于直径较小的水箱。水箱有可见的液位指示。
The L Gauge is a reliable swing arm level monitor designed for smaller diameter tanks. It provides a visual indication of the liquid level in your tank.
稳定的摇臂式液位检测器，用于直径较小的水箱。水箱有可见的液位指示。
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