The main uncertainty ′ s resource were repetitive measurement balance 250 mL volumetric flask 25 mL piper spectrophotometer and its process of determination .

不确定度主要来自于重复性测定、天平、250mL 容量 瓶、25mL移液管、分光光度计及测定过程。

Test of the variation for the volumetric flask capacity according to the temperature

容量 瓶温变试验及其应用

The volatile oil in brown volumetric flask had a remarkably slower change speed than that in white one .

棕 瓶中挥发油变化速度明显慢于白瓶。

When other fermentation condition was constant the total acidity in medium increased when the volumetric ratio of medium to flask and corn steep liquid concentration were increased .

发现在发酵其它条件恒定， 装液比和玉米浆浓度增加时， 发酵液总酸是 递增的。

The test on the variation of the volumetric flask capacity according to the temperature was made .

试验了 容量 瓶经升温、降温后容量的变化。

For preparation of the mobile phase add the appropriate amount of stock solution and water to a volumetric flask .

对于流动阶段的筹备工作，添加原液和水的一 容量 瓶 适量。

Computation programs used in the determination of soil specific gravity with volumetric flask

比重 瓶 法测定土粒比重的 PC-1500计算机计算程序