When using a rotary handpiece for background removal, be sure to make short pulling strokes.
当使用一个背景去除，旋转机头一定要拉短杆。
This precision air handpiece operates at around 400,000 RPM, and greatly speeds up background removal.
这种精密的空气机头工作在大约40万转，极大地消除了背景的速度。
Between the two, the engraver will be well equipped for background removal, sculpting and carving, and more.
在这两者之间的雕刻将具有完备的背景去除，雕塑，雕刻等。
The algorithm simultaneously achieves quantitation of the vapor spectral transmission, background removal, real time calibration for FTIR .
该算法在完成定量分析蒸气透过率的同时，还进行了目标背景的实时扣除和对FTIR仪器的实时定标。
Basically, low concentration of alkane background gas has no effect on the removal efficiency of malodorous gas.
低浓度的烷烃背景气体对恶臭的脱除效率基本无影响。
The basic removal coefficient and additional removal coefficient of speedup passenger trains on single railway lines are analyzed by taking HankouDanjiangkou railway line as the background.
以汉丹线旅客列车提速方案为背景，分析了单线铁路快速旅客列车基本扣除系数和额外扣除系数。
BACKGROUND: the optimum timing for denture removal in edentulous patients before anesthesia and surgery is uncertain.
背景：无牙患者在麻醉和手术前需要取出假牙，但其时机尚不清楚。
BACKGROUND: the optimum timing for denture removal in edentulous patients before anesthesia and surgery is uncertain.
背景：无牙患者在麻醉和手术前需要取出假牙，但其时机尚不清楚。
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