test tube holdertube是什么么...

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n. 考虑;原因;关心;报酬
considerating
问题的思考
我叫范会娟,今年32岁,毕业石家庄军械工程学院,大... ...
Easy smile, but no fun >> 轻松的笑容,但没有乐趣
considerating >> 问题的思考
cut down the price >> 下调收购价格 ...
基于3个网页-
求翻译:Fluide demaqillant adoucissant visage&yeux 是什么意思? ...
fair enchant scroll >> 公平点化滚动
considerating >> 怨气冲天
TEST TUBE HOLDER >> 试管夹 ...
基于3个网页-
Considerating the above problems, the paper puts forward a hypothesis based on some premises.
为此,本文在若干假设前提的基础上,提出了初步的假设。
The paper suggests that sound and fast construction of Kaili University, several issues are worthy of considerating: one is to avoid the tendency of governmental management in college;
又好又快建设凯里学院,有几个问题值得注意:一是要避免高校衙门化的倾向;
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感谢您的反馈,我们会尽快进行适当修改!test tube holder
test tube holder的用法和样例:
He held the test tube in his hand thoughtfully.
他沉思地把试管拿在手里。
The solution in the test tube is boiling away.
试管里的溶液不住地沸腾着。
Put some iron nails at the bottom of a test tube.
把一些铁钉放在试管的底部。
He mixed chemicals in a test tube.
他把化学药品混合在试管里。
test tube holder的海词问答与网友补充:
test tube holder的相关资料:
相关词典网站:Test Tube Holder
A Test Tube Holder is a device that as the name suggests is used to hold the test tubes in place and based on the uses and the type of test tubes there are many modifications that can be sought.
Test tube holders, are used to hold the most commonly used, yet highly diversified range of scientific laboratory glassware ‘test tube’ ranging from basic school level chemistry or biology laboratory experiments to highly specific patented serum detection kits used in tertiary care pathological, microbiological or biochemical laboratory tests or top end path breaking biological, chemical or physical experiments, also including space labs that involves potential radiation, high pressure zones, chemical or bio hazards: the holders of these test tubes used are required to be held in a required position, for variable time periods for various purposes: during manufacture, storage, transport, experiments, non-experimental storage and also non-scientific purposes i.e. decoration. A test tube holder’s main purpose is to hold the test tube in place, but they can also be used to hold the pipettes and stirring rods in place. Depending upon the nature or property of the substance held in the test tube, the test tube holders have many accessories that have evolved over last few centuries. Specialized diversifications of fields amalgamating radiation, biology and chemistry have inspired the test tube holder designs to change in last few decades.
Properties:
Properties of a Test Tube Holder is dependent upon the type of experiment it is used in in other words the property of the substance held. They are classified based on a number of criterion such as physical property, biological property, chemical nature of the reactions involved,required position of the test tube during experiment ,radiological property of the reagents , speed/ vibration involved during experiment, portable/ static nature of the experiment, bulk transport/ storage purpose,fixed/ detachable/ flexible property as required and exposure to corrosion/ autoclaving.
Various types of test tube holders are
Racks: these are socket type test tube holders: made of wood, plastic, metal, chinaware or may be simply concrete structures beside your laboratory basin.
Slanting racks: depending on the nature of the experiment, the slant of the rack are adjusted by specialized equipments in order to carry out the storage orexperiment.
Lab- ware baskets: come with tilt top lids. Of various sizes- autoclave and corrosion resistant. Materials involve aluminium, polypropylene or polyethylene baskets.
Drying racks: chemically resistant, along with work station or fume hoods- made of poly styrene or brass: often come with wall hangers
Bins: clear acrylic shelves with white bases
Special purpose racks: can be autoclaved.
Micro pipette racks: micro used for bench top of long term storage
Centrifuge racks: special purpose racks made of metal or high strength plastic/ glass to withstand a high velocity circular motion during centrifuge methods
Brackets: easy to transport, mostly made of plastic. Used to store many tubes in upright/ inverted position during storage/ experiment/ transport
Chemistry lab beaker test tube holder: special purpose holder to carry out carry out chemical experiments involving high temperature/ pressure variation
Test tube clamps: the test tube can be held in a particular slanting position requiring microbiological culture/ biochemical experiments
Special slot test tube holders: special lab experiments like ELISA, Drug Screen etc involving colour coding, multiple test tubes of various sizes & colours are involved
Multi-level/ detachable holders: highly specific experiments need these equipments
Steralizing and maintain a test tube holder:
Sterilizing test tube holder is important to ensure that it is kept contamination free and that any experiment that is done with test tubes place in it don’t get contaminated. They are sterilised in the standard procedure as with metals they are cleaned and autoclaved while for plastic one they can be cleaned with disinfectants and sterilized using fumigants.
It is important that they be kept clean and dry to ensure a good working life.
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