... tracing needle ==> 描图针 tracing observation ==> 追踪观察 tracing paper ==> 描图纸,透明纸 ...
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gps tracing observation gps跟踪观测
Tracing observation device 跟踪观测设备
tracing observation
跟踪观察
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Conclusion Along with age child's refraction condition is in change, therefore the tracing observation is needed.
结论儿童的屈光状态随年龄在不断地变化，故需追踪观察。
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Therefore, close observation of the fetal heart rate tracing is necessary during labor.
因此产程中应严密观察胎心变化。
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