Artifacts produced by retention pin, nickel chromium crown and so on were less severe on fast spin-echo.
牙用固位钉、镍铬合金冠等材料在快速自旋回波图像上伪影减轻。
Discussion is made with focus on the influents of ZHY-2000 finishing oil on the product quality and steady running for polyester filament by hot pin spin-draw system.
讨论了热辊式FDY 涤纶民用丝生产时， 油剂对产品质量和稳定运行的影响。
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