db造句
2024年06月12日 13:26:35
DB can be replaced while the furnace is at operating temperature.
当熔炉内温度在操作范围内时
DB型 硅碳棒可以被替换.
B & W products have achieved CE 、 UL 、
DB 、 ROSH and other international approvals.
我公司的产品已取得CE、UL、
DB、ROSH等国际认证.
A
DB - 624 quartz capillary column and a FID were used.
采用气相色谱法,
DB -624石英毛细管柱,氢火焰离子化检测器(FID),程序升温,检测器温度为300℃.