查询词典 burette

Take for the amount of test materials, precision that set, place beaker, unless otherwise specified, may be added 40ml of water and hydrochloric acid solution (1-2) 15ml, and then set on a magnetic stirrer, stirring allows the dissolved, together with potassium bromide 2g insert platinum - platinum electrode, it will insert the solution of the following buret tip is about 2 / 3, using sodium nitrite titration solution (0.1mol / L, or 0.05mol / L) rapid titration, side drops while stirring, to near point, Burette tip surface will be presented with a small amount of water leaching cutting-edge, lotion, and solution and continue titration slowly until the sudden deflection of galvanometer pointer, namely, titration end point.

取供试品适量，精密称定，放置烧杯中，除另有规定外，可加水40ml与盐酸溶液（1-2）15ml，而后置电磁搅拌器上，搅拌使溶解，再加溴化钾2g，插入铂-铂电极后，将滴定管的尖端插入溶液下面约2/3处，用亚硝酸钠滴定液（0.1mol/L或0.05mol/L）迅速滴定，边滴边搅拌，至近点时，将滴定管的尖端提出液面，用少量水淋洗尖端，洗液并溶液中，继续缓缓滴定，至电流计指针突然偏转，即为滴定终点。

Accuracy of the burette and pipette is the main factor which influences the uncertainty of measurement.

滴定管和移液管的准确度是影响总碱度测量不确定度的主要因素。

This model is particularly designed for slender goods and especially applicable for cleaning burette and the other similar goods.

本型号是为那些细长形状的物件量身定制的高效清洗器，尤其适用于清洗滴管等与其类似的清洗件。

Burette has 10 divisions in 1 cm 3, fill in 50 cm 3 in maximum.

滴定管是十分准确的仪器，它用来量度使用了的

The copy of the business license Leo Burette Co., to prove the legal person status of the company.

上海李奥贝纳公司的营业执照副本，证明该公司的法人资格

When making the air reading in the burette, the level bottle should be raised so as to bring the liquid in the burette and level bottle to the same level.

当得到滴管中的气体读数，水平瓶应该升高，使滴管中的液体和水平瓶中的液体在相同的水平。

It is also advisable to invert the instrument and allow the gas that was released into the burette to be absorbed in the larger bottom bulb of the burette.

颠倒仪器是允许的，使气体释放到滴管，这样使滴管的大球吸收CO2。

Close the Whitey valve (5056), open the burette cock (5005) and put approximately 100cc's of water in the level bottle (5047), elevating the same above the burette so as to allow the water to run down into the burette to the bottom of the calibrations.

关闭白色阀门(5056)，打开滴管龙头(5005)，然后放出大约100ml的水平瓶(5047)中的水，举起滴管让水流进滴管到刻度的底部。

Raise the level bottle to fill the burette completely and close the burette cock.

防治溢出，腐蚀性汽水阀供应附件在滴管顶端。

Drops counting of capillary burette micro titration with polyethylene burette to carry on titration analysis, the apparatus is simple, small, cheap, easy to carry, and less reagent consumed, while the determination is fast and correct.

毛细滴管数滴微型滴定法以价格不足0.3元/支的聚乙烯塑料滴管为量器进行滴定分析，不仅仪器结构简单、小巧、价廉、携带方便，而且试剂用量少，测定简便、快速、准确。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。