db是什么意思

实用例句

1. 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.来自互联网

2. 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.来自互联网

3. 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℃.来自互联网

4. Using DB - FFAP Wide Bore capillary column and n - propanol as internal standard.

采用DB-FFAP大口径毛细管柱,以正丙醇为内标进行定量.来自互联网

5. DB managers reckon that Britain's regulator favours shareholders over passengers.

DB的管理者们预计监管者更倾向股东而不是乘客.来自互联网