查询词典 conical flask

The improved method selects the absorbing wavelength of 618 nm and the reaction time of 40 min, uses the NH4Cl-NH3 buffer solution (pH=8.0) and BTB alcohol solution (0.4 g/L) respectively of 5 ml and 1.5 ml in the 50 ml volumetric flask, and can test the concentration of imidazolinyl-quaternary-ammonium-salts in range of 0 mg/L to 80 mg/L.

利用改进的显色反应法检测时，吸收波长选择618 nm，显色时间40 min， 5 ml容量瓶中NH4Cl-NH：缓冲液(pH=8.0)和BTB乙醇溶液(0.4 g/L)的添加量分别为 5 ml、15 ml，适用检测的咪唑啉季铵盐浓度为0~80 mg/L。

Four pairs will each prepare one of the following four solutions made by adding the appropriate quantity of solid NaNO3 to the specified volumetric flask and diluting to the mark with stock solution A.

四对人中每一对都要将适当量的固体NaNO3加到指定的容量瓶中，然后稀释至跟储备溶液A相同的刻度以配制以下四个溶液中的一个。

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。

Weigh approximately 50mg of a previously released lot of EP-55 drug substance into a 25mL volumetric flask.

称量约50mg以前生产的BM-55药品，放入25ml容量瓶中。

Second, glass instruments: various types of centrifuge tubes, test tube,volumetric flask, slide, cover films and so on.

二、玻璃仪器：各式离心管、试管、容量瓶、载玻片、盖片等。

Pipette 20.0 ml stock standard solution to a 100 ml volumetric flask and dilute to volume with distilled water.

移取20.0ml 标准储备液到100ml 容量瓶，稀释定容

If solution is clear, add 20 mL of distilled water to the cool digestion mixture and transfer to a 100mL volumetric flask and make up to volume.

冷却后，加入足够的双氧水使灰化物被氧化，然后再次加热。

Solution F: At the beginning of each "kinetic day", the fifth pair of students will prepare a 2.5x10-4 M ascorbic acid solution by adding the appropriate amount of solid ascorbic acid to a 250-mL volumetric flask.

溶液F：在每一次开始&动力学实验&以前，第五对的学生要准备一个浓度为2.5x10-4 M的抗坏血酸溶液。其配制方法是把适量的固体抗坏血酸加到一个250-mL的容量瓶中。

While the volumetric flask is heating and degraded directly,the content of total phosphorus in the circular water containing buffer erosion scale preventive agent of organic phosphorus can be determined.

含有机磷缓蚀阻垢剂的验收以及循环水中对总磷含量的测定方法，都要经过加硫酸和过硫酸铵加热氧化分解的过程，一般的标准方法都是采用在锥形瓶中加热，分解完毕再移入容量瓶中，进行显色测定。

Transfer 2.0 mL of this solution to a 100-mL volumetric flask, add 5.0 mL of Internal standard solution , dilute with pH 7.0 Buffer to volume, and mix.

供试品溶液1的制备（针对注射用单次量容器中的样品

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。