查询词典 test tube

The test- tube count also provides at accuracy, repeatability, and higher detection rate than plate count. It is an effective and easy way to count Lactobacillus.

该法测得结果的重复性好，而且菌落总数检出率较平板法高，是1种高效简便的乳酸菌活菌计数方法。

The displacer cylinder is made of glass test tube and the glass syringe are made as the power piston .The students can observe what happening inside the engine what the engine is operating . In this research we try to investigate the relations between the hot air engine characteristics and the design parameters , and base on the results .We designed and made a hot air engine car with a good performance .

本引擎车使用玻璃试管与玻璃针筒作为移气器汽缸与动力活塞汽缸，让学生能够直接观察引擎作动时移气器与活塞的相对运动，本研究首先针对行程容积比、移气器与汽缸长度比、流道大小、再生器等参数与引擎性能的关连性进行研究，进而设计出热空气引擎车。

Objective To develop a new technique for efficient and rapid non-test tube cloning of the medicinal and energy-producing plant Jatropha curcas.

目的建立药用及能源植物小油桐非试管快繁技术。

This solves contradiction about fluidity capability and segregation capability. Through SCC"s tests on flowing property, filling performance, passing ability and segregation are done by adopting slump test tube, V funnel and L fluidity instrument, the results of SCC"s flowing property are gotten under the case whose water gel ratio and coarse aggregate are changed.

通过采用坍落度筒、V漏斗和L型混凝土流动仪实验仪器对不同骨料的自密实混凝土的流动性、混凝土的填充性和钢筋通过性、混凝土的抗离析性等系统试验，得出了在改变水胶比和粗骨料的情况下自密实混凝土流动性能的变化结果。

China had initially formed a preservation system for germ plasma resources from crops, including one national germ plasma bank for long-term preservation and a duplicate one, 23 local germ plasma banks for mid-term preservation, and 25 national germ plasma nurseries, of which two are for test-tube culture.

到1995年底，中国已初步形成农作物种质资源保存体系，建成国家级贮存种子长期库及复份库各1座，地方中期库23座，国家级田间种质圃25个，其中试管苗圃种质库2个。

Place 5 ml in a test-tube immersed in iced water, add 0.4 ml of a 100 g/l solution of potassium chloride R, 0.1 ml of diphenylamine solution R and, dropwise with shaking, 5 ml of nitrogen-free sulphuric acid R.

硝酸盐：取本品5ml置试管中，于冰浴中冷却，加100g/l氯化钾溶液0.4ml与0.1%二苯胺溶液0.1ml，边摇边滴加无氮的硫酸5ml，摇匀，将试管于50℃水浴中放置15分钟，溶液产生的蓝色与标准硝酸盐溶液(2 ppm NO3)0.5ml，加无硝酸盐的水4.5ml，在同一时间用同一方法处理后的颜色比较，不得更深。

The bubbles are collected in a test tube and tested by a glowing splint. The glowing splint relights showing that the gas is oxygen.

若把气泡收集，并以有余烬的木条试验，木条重燃，证明水草所放出的气体是氧气。

Methods Is it fetch urine 50 ml mix even to fetch 10 ml pour scale into in the test tube fresh morning to leave.1 500 r/min.5 min abandons and leavesclearly 0.2 ml.

留取晨尿50 ml混匀，取10 ml倒入刻度管内。1 500 r/min，5 min弃上清留0.2 ml。

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。

The estimating system of common buckwheat Al3++ tolerance and the Al3++ tolerance of 52 common buckwheat accessions were studied by means of test tube culture method.

利用小容器溶液培养法对耐铝性鉴定条件和52份普通荞麦栽培品种资源的耐铝性进行了研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。