查询词典 contamination

Electronic grade N methyl 2 pyrrolidone solvent is used as wax removal, wafer degreasing and other contamination detergent in PC magnetic head production.

电子级 NMP溶剂在电脑磁头生产中用作脱蜡剂、脱脂剂和污渍清洁剂。

With the rapic development of the city of Kunming and industrial production, the problem of Dianchi lake"s contamination is serious day by day, the Dianchi"s government is imperatived.

随着昆明城市和工业生产的迅速发展，滇池污染问题日益加重，对滇池的治理势在必行。

Coverage includes water and soil contamination; environmental problems associated with transportation; geological processes affecting biosystems and people; remediation of man-made or geological hazards; environmental problems associated with mining and abstraction activities for industrial minerals, coal and ores as well as for oil and gas, water and energy; environmental impacts of exploration and recultivation; impacts of hazardous facilities and activities; land use management; management of environmental data and information in data banks and information systems.

主题包括：废弃物处理和管理造成的水和土壤污染；工业造成的水和土壤污染；运输引起的环境问题；威胁或影响生物系统和人们的地质作用过程；人类造成的或地质作用引起的灾害的减缓；地球物质材料资源的恢复保护；采矿活动造成的环境问题，如煤、金属矿石、石油、天然气、水等；勘探的环境影响；危险物质和活动的环境影响；土地利用（包括社会政治的政策决定）；环境数据和信息的管理。网站免费提供该刊1975年创刊至今的目次和文摘，全文则仅限授权用户使用。

Kinds of waste water and new tveatment methods in the paper industry have been discussed in this paper, simultaneity introduce the importance action of cleaning production to redue waste water contamination.

本文讨论了造纸工业废水的产生及种类，介绍了造纸废水最新的处理方法及清洁生产在降低造纸工业废水污染方面的重要作用。

And influences of contamination on Sr isotope and LILEs are more evident than those on Nd isotope and REEs.

同化混染对Sr同位素和大离子亲石元素的影响程度大于对稀土元素和Nd同位素的影响程度。

These uncontaminated explants showed that morphogenetic potential were 70%-75% and each responding explant had 1.2-1.4 shoots formation on MS medium supplemented with 2 mg/L NAA and 16 mg/L BA. Moreover, adding antibiotics (100 mg/L Rifampicin and 100 mg/L Gentamycin) to solidify MS contained 3% galactose were tested, results showed the lowest contamination rates were 20% and 1.0-1.2 shoots were regenerated per responding explant. The antibiotic treatments with 100 mg/L Rifampicin and 100 mg/L Gentamycin could reduce internal contaminants, while the addition of antibiotics into medium in vitro culture led to phototoxic phenomena of axillary explants, morphogenetic potential lost and the growth of regenerant was also inhibited.

以100 mg/L Rifampicin+100 mg/L Gentamycin或100 mg/L Rifampicin+100 mg/L Gentamycin+150 mg/L Streptomycin组合浓度处理者，具有显著降低污染率的效果分别为60%及50%；克服内生菌污染而建立初代无菌培养之腋芽培植体，则以100 mg/L Rifampicin或以100 mg/L Rifampicin+100 mg/L Gentamycin处理者，芽体再生率最高70%-75%，惟平均每一腋芽培植体芽体增殖数仅1.2-1.4个；另在醣种类及浓度与抗生素试验，显示100 mg/L Rifampicin+100 mg/L Gentamycin之抗生素浓度组合添加至含3g/L半乳糖的培养基，显著降低污染率至20%；但未污染之培植体，形态发生潜能低至40%以内，可反应生长之培植体芽体形成数也仅达1-1.2个之间，再生芽体之生长也显现抑制现象。

Based on numerical modeling results of influencing factor, multifactor retrogressive method has been established, according to which a function related to water contamination and recovery extent at each stage of five characteristic points has been established.

结合影响因素数值模拟结果，建立了多因素回归方法，确定了5个特征点的含水和阶段采出程度与多影响因素的函数关系。

They aimed at becoming "pure," partly by ceremonies of purification, partly by avoiding certain kinds of contamination. The most orthodox among them abstained from animal food, except on ritual occasions when they ate it sacramentally.

他们的目的是达到纯洁，部分靠举办净化仪式，部分靠避免污染物种，他们之中最正统的信徒要规避肉食，除非是宗教场合的牺牲。

Human's irrational development activities have brought serious effects to soil environment,such as desertification ,soil erosion,salination,and contamination etc.

人类不合理的开发行为给土壤环境带来了沉重的负面影响，主要表现为土壤沙化、土壤侵蚀、土壤盐渍化、土壤污染等。

This scient running a series of articles on the questions of how to prevent environment contamination.

这位科学家最近就如何防止环境污染问题发表了一系列的文章。

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％。