科学家已经鉴定出造成走味的瓶装啤酒带点苦的回味的化学物质。
Scientists have identified the chemicals that lead to the bitter aftertaste of stale bottled beer.
他们鉴定出四种不同的含铅物质，其中两种是人工合成的，并非天然物质。
They identified four different lead-based substances, two of which were man-made, not natural.
他们鉴定出56种物质造成啤酒的苦味，包括5种主要导致啤酒放久后的难闻味道的物质。
They identified 56 substances that contribute to beer's bitter taste, including five that appear to be largely responsible for its harsh flavour after ageing.
在阅读部分，研究人员鉴定为血管的物质很可能就是细菌繁殖后留下的湿软残渣的痕迹。
What the researchers in the reading are identifying as blood vessels might just be traces of soft and moist residue left by bacteria colonies.
应以附件形式描述用以鉴定申报物质的方法、条件、仪器等，并提供谱图。
To provide an attachment describing the method, conditions, instrument and chromatogram or spectrum diagram to identify the notified substance.
质谱测定法：一种分析方法，利用电场和磁场通过质量来将气体离子分类，从而鉴定化学物质。
Mass spectrometry: Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields.
在辐照的食品中已经鉴定出有一些潜在的致癌及致变物质。
Some potential carcinogens and mutagens have also been identified in irradiated foods.
方法运用色谱学和波谱学方法分离和鉴定硫酸异帕米星中的有关物质，并做体外抗菌试验。
METHODS Chromatographic and spectroscopic methods were used to isolate and identify the related substance in isepamicin, and antibacterial activity of two related substances was studied.
基于临床实际病例，建立了采用气相色谱-质谱（GC/MS）技术即时鉴定中毒病人血液中有毒物质的临床分析方法。
The analytical method for identification of the toxicosis in blood was established by gas chromatography mass spectrometry(GC/MS) based on the practical clinical case.
本文采用低温灰化仪分离了我国18个煤样中的矿物质，用X射线衍射法对它们进行鉴定。
The mineral matter has been separated from 18 coal samples with a low temperature asher, and analyzed by means of X-ray diffraction method.
方法取肺外结核病灶中的坏死物质作分枝杆菌培养、菌型鉴定及药物敏感性试验。
Method The mycobacterium culture, appraising of bacterial type and medicine sensitiveness test of focal necrosis material of outer-pulmonary tuberculosis are completed.
本文对枇杷叶中三萜类物质的类型、生物活性、提取分离、纯化、检测分析以及鉴定进行了综述。
This paper summarizes the bioactivity, Abstracts, isolation, purification, inspection, analyze and identification of triterpenes(ursolic acid and corosolic acid)in loquat leaf.
目的观察P物质在过敏性猝死人体咽喉和胃肠组织的表达，并探讨其在法医学鉴定中的作用和意义。
Objective To study the expression of substance P (SP) in human sudden erethistic death, and to seek objective morphological supports to diagnose sudden erethistic death for forensic medicine.
这就是说，质检部门只能检测那些已知的、已由法律鉴定的物质，未知的物质不能被检验出来。
That is to say, quality-inspection agencies can only test known substances that have already been identified and required by law.
检索结果显示，利用生物质谱技术是鉴定蓖麻毒素的最有效的新方法之一。
The results indicate that the biomass spectrometry technology is one of the most effective methods to identify ricin.
介绍了柑橘果实皮和汁中芳香物质的提取、组成、鉴定等方面的研究进展情况。
This review introduces research progresses in citrus aromatic substances, their distilling, composition and identification.
可改变或转化物质，如神秘学意义上的鉴定、将物质形状与功能如黏土般重塑等。
The alteration or transformation of material substances, from mystically identifying them to molding their shape and function like clay.
对实验动物的皮肤、皮下组织、颈和气管的生物鉴定表明，城市空气中的颗粒物质对健康动物可能是致癌的。
Bioassays on the skin, subcutaneous tissue, cervix, and trachea of experimental animals have shown that particulate matter of urban air can be carcinogenic in the intact animal.
该文叙述了黄酒香味的来源，采用气质联用法对黄酒香味进行了分析研究，鉴定了其中一些香味物质组分。
The paper presented the origin of rice wine flavor, analyzed and studied the aroma of rice wine by the method of GS-MS analysis, and determined some aroma compositions.
结果鉴定出3种物质及其结构。
结果表明：鉴定甜瓜品种抗旱性，苗期可应用株高胁迫指数（PHSI）、干物质胁迫指数（DMSI）、叶片水分饱和亏、电解质渗出率、干旱处理伤害率等指标。
The results showed that PHSI, DMSI, WSD, electrolyte transudation ratio and injury ratio under drought treatment could be used to appraise the drought resistance of melon species at seedling stage.
除了F-11菌株外，还有一些待鉴定的菌株也能产生胡萝卜素或类胡萝卜素物质。
And strain F-11 can produced carotenoids pigments. Therefore, strain F-11 is considered as one member of extreme halobacteria.
本文通过扫描电镜、等离子体光谱分析、热重分析、13c核磁共振波谱分析、傅立叶红外变换光谱分析，对它进行物质结构的鉴定和元素含量分析。
The structure identification and the element content analysis were investigated with scanning electron microscope, plasma spectral analysis, TG analysis, 13c NMR and FTIR spectral analysis.
芫荽、莴笋、番茄、冬瓜、黄瓜分别鉴定出79、49、83、66、87种挥发性成分，各挥发性成分均以醛类物质为主。
79 were identified in coriander, 49 in lettuce, 83 in tomato, 66 in chinese wax gourd, 87 in cucumber.
李文应用裂解色谱法对丙烯酸酯等物质的共聚物与共混物进行了鉴定。
It relates to pyrolysis gas Chromatography to evaluate polyacrylic rubber and some other copolymer or blends.
对香蒲类植物的花粉蒲黄中的抑藻物质进行提取、分离、鉴定。
The ethyl acetate extract of Typha latifolia inhibit the growth of some algae.
共鉴定出25种香气物质，新鲜柠檬汁中检出其中的23种，酶解汁中检出25种。
A total of 25 aromatic components were identified: 23 in the fresh lemon juice and 25 in the enzyme-hydrolyzed juice.
共鉴定出25种香气物质，新鲜柠檬汁中检出其中的23种，酶解汁中检出25种。
A total of 25 aromatic components were identified: 23 in the fresh lemon juice and 25 in the enzyme-hydrolyzed juice.
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