查询词典 contamination

They include the variation of the degradement velocity of different sample, the inhibition product of PCR, the amount of DNA extraction, quality of DNA and the heteroplasmy of some tissue. Correct sequencing, comparison of the result of forward and reverse primers sequencing should be done to rule out wrong signals, and prevent contamination. In addition to gene sequencing, low grade heteroplasmy could be dealt by Denaturing high performance liquid chromatography. Multiplex Ligation-dependent Probe Amplification. The analysis of mitochondrial HV Ⅰ, HV Ⅱ sequencing is able to identify the maternal sanguinity, then it could assist in the human identification. It also complements the genomic STR system in distribution of population, the origin of human, and analysis for fossil.

分析粒线体DNA时必须考虑各类检体腐败DNA降解速度之不同、PCR的抑制物质、DNA的萃取量及品质、特定组织的异质现象、萤光序列分析图及正、反向引子定序结果比对、排除杂讯干扰、防治污染等，除以基因定序外，低程度的异质现象也可用Denaturing high performance liquid chromatography、Multiplex Ligation-dependent Probe Amplification等方法分析，粒线体HV Ⅰ、HV Ⅱ碱基序列的分析可鉴别一个人的母系血缘关系、辅助人类身分鉴定，对於族群分布、人类起源探讨、远古检体的分析可作为辅助STR系统的利器。

The export goods that food grains other than wheat and rice is our country tradition has the has nutrient value and sanitarian function variety of a lot of free from contamination, potential of domestic and international market is greater.

杂粮是我国传统的出口商品有许多无污染的有营养价值和保健功能的品种，国内外市场潜力较大。

In addition,the radio contamination in scintillation chamber is analyzed.

最后对闪烁室的放射性污染进行了理论分析。

The essay approves the dealing countermeasure to the main pollution from the aspect of environment protection, and the recycle use of the waste scoria, the main contamination.

本文还从环境保护方面就主要造成环境污染的几个方面提出了处理对策，并提出了对主要污染物——废弃矿渣的回收用途。

as an industrial secondary product, fly ash is filling the comprehensive processing and use also with the green concrete demand in which environmental preservation and continuation are possible, when decreasing the contamination to environment.

小 粉煤灰作为工业副产品，它的综合处理和利用，不但减少对环境的污染，还有利于环保，满足可持续发展需要的绿色混凝土。

It was created by contamination of self-indulgence and negative ego base thoughts and actions.

靠着自我放纵和负面利己基础上的思想和行动的污染就创造出地狱来了。

Objective: To understand the status of biological contamination in serology laboratory and to assess the risk of bio-safety in serology laboratory.

目的：评估血清学实验室的生物安全现状，了解血清学实验室在常态运转下的工作环境病原微生物污染状况。

Heavy metal contamination in soils and vegetables in five environmental units, i.e. mining and smelting area, arterial traffic,factory,sewage irrigation plot and farm produce base, in 5 counties and 4 suburbs of Nanjing City were investigated.

采集了南京市5县4郊5个环境单元（矿冶区、交通干线、工厂周边、污灌地、农产品基地）共100个样点的农田土壤及部分蔬菜样品，测定了重金属（Pb、Cu、Zn、Cd）的质量分数。

But the quantitative description of Characteristics of bow structures is lacking in ship collision studies. In ship collision accidents, seriously contamination of marine environment will occur due to the rupture of stuck shipside. In order to prevent such oil spill from a struck tanker, the double hull system in side hull has been recognized as an effective countermeasures.

船舶碰撞事故中，被撞油轮船侧的破裂会引起严重的海洋资源污染，于是油轮双层船壳设计成为了防止被撞油轮破损的有效措施，但是随着海上运输船舶的数目及尺度的日益增大，只对被撞船采取双层船壳的设计已经不能满足防止船侧破损的要求了。

In crossed contamination test, hits 36 cm away from the tested sidewall were less than 2 cfu.

交叉污染实验中距被检测侧壁36 cm外的培养皿上的菌落数不大于2 cfu。

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％。