|
|
409.
|
|
|
This flask named after the chemist Emil Erlenmeyer (1825-1909) comes - unlike the beaker - with an inverted conical base and a cylindrical neck. There are different types of Erlenmeyer flasks for laboratory applications, the narrow and wide neck form. Depending on the application the flask may have precision grinding to allow good connection to other containers. 
[tab][tab][tab]<br>
[tab][tab][tab]The narrow neck reduces the risk of fluid escaping, especially when boiling or during reactions which agitate the contents.
[tab][tab][tab]<br>
[tab][tab][tab]An Erlenmeyer flask is useful for mixing fluids or accelerating reactions by stirring or shaking, for example. The Erlenmeyer flask is particularly suited for a magnetic stirrer, since it can be placed directly on the stirring platform. A round-bottomed flask, by contrast, must be placed on a cork ring on the stirring platform.
|
|
|
i18n: file: data/tools.xml:148
|
|
|
[tab] represents a tab character.
Please write it exactly the same way, [tab], in your
translation.
|
|
|
represents a line break.
Start a new line in the equivalent position in the translation.
|
|
|
|
|
锥形瓶的英文名为Erlenmeyer Flask，得名于化学家Emil Erlenmeyer(1825-1909)，与烧杯不同，它有一个圆椎形的底盘和一个圆柱状的颈部。对于不同的实验应用，锥形瓶颈的尺寸是不同的。这取决于与之相接的磨砂接口的大小。
[tab][tab][tab]<br>
[tab][tab][tab]一般窄颈的锥形瓶可以减少易挥发物质的逃逸。特别是在蒸馏或是反应激烈时。
[tab][tab][tab]<br>
[tab][tab][tab]锥形瓶在混合流体及通过搅拌或摇动来加速反应时很管用。例如锥形瓶特别适合与磁力搅拌器合用，因为它可以直接放在搅拌器底盘上。而圆底烧杯却只能加个软木环以便在磁力搅拌器底盘上固定。
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:1385
|
|
|
410.
|
|
|
Ultrasonic Bath
|
|
|
i18n: file: data/tools.xml:153
|
|
|
|
|
超声波清洗器
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:2594
|
|
|
411.
|
|
|
For some chemical reactions it is important that the solvent is gas free. To achieve this the reaction vessel is put for some time into a ultrasonic bath. Through the high sound frequency the vapor locks peel away and ascend. This procedure is called outgassing.
|
|
|
i18n: file: data/tools.xml:154
|
|
|
|
|
在一些化学反应中，溶剂要求不能有气体残存。于是常将带有溶剂的容器放在超声波清洗器中。通过高频振动，将溶剂中的气体振出。这个过程叫说除气。
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:1394
|
|
|
412.
|
|
|
Scales
|
|
|
i18n: file: data/tools.xml:158
|
|
|
|
|
天平
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:2598
|
|
|
413.
|
|
|
In a laboratory you often have to weigh out very precise amounts of reagents. High precise scales can measure masses down to 1/10000 gram.Therefor they stand on granite blocks to avoid vibrancies and are protected against blasts by a dome.
|
|
|
i18n: file: data/tools.xml:159
|
|
|
|
|
实验室中您经常必须对试剂进行精确的称重。高精度的电子天平可以精确到万分之一克。因此，常采用花岗岩作底垫防止振动。并做成玻璃罩子避免微风的干扰。
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:1398
|
|
|
414.
|
|
|
Distillation bridge
|
|
|
i18n: file: data/tools.xml:163
|
|
|
|
|
精馏管
|
|
Translated by
yuanjiayj
|
|
Reviewed by
Tao Wei
|
|
|
|
Located in
rc.cpp:2602
|
|
|
415.
|
|
|
To separate a mixture you can use distillation amongst others. The distillation bridge is thereby the way between the two pots. In the one pot there is the mixture to be separated. Through heating, a gas forms which is lead through the bridge. At the end of the bridge the gas phase is condensed again and drips in a round flask. As a rule, the bridge is cooled by return flow. In addition, there is often a thermometer for controlling the temperature on the distillation bridge.
|
|
|
i18n: file: data/tools.xml:164
|
|
|
|
|
精馏管可以用来分离混合物。精馏管有两个出口，其中的一个出口是接分离物的。当加热时，热气流通过精馏管，在精馏管的末端凝结，流入一个圆底烧杯中。精馏管的冷却一般是靠气冷。而且在精馏管中常用温度计来控制温度。
|
|
Translated by
Jeroen T. Vermeulen
|
|
|
|
Located in
rc.cpp:1402
|
|
|
416.
|
|
|
Syringe
|
|
|
i18n: file: data/tools.xml:169
|
|
|
|
|
注射器
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:2606
|
|
|
417.
|
|
|
A syringe consists of two parts: A glass tube and a punch. Both are normally made of glass. A gas floats into the glass tube. As the syringe is a closed system the punch has to give way. This can be used measuring the volume of an reaction.
|
|
|
i18n: file: data/tools.xml:170
|
|
|
|
|
注射器由两部分组成：一根玻璃管和一根冲杆。这两样通常都是用玻璃做的。当气体进入玻璃管时，由于注射器是密封的，冲杆就被压出。这样就可以测量反应气体的量了。译者注:化学实验中这么大的注射器只用来作流量计用。
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:1406
|
|
|
418.
|
|
|
Separation Beaker
|
|
|
i18n: file: data/tools.xml:174
|
|
|
|
|
分离烧杯
|
|
Translated by
yuanjiayj
|
|
Reviewed by
yjjart
|
|
|
|
Located in
rc.cpp:2610
|
