FDA要求瓶装水生产商必须定期对污染物含量进行测定，但该机构认为瓶装水是低风险产品，所以并不一定每年都会对其生产过程进行检查。
The FDA requires bottlers to regularly test for contaminants, but the agency considers bottled water a low-risk product, so plants may not be inspected every year.
空气污染是很复杂的技术问题，很难测定出来，但有几种简易方法来检测房屋附近的空气污染度。
It's a complicated technical issue and it's difficult to know what you're looking for.But there are a few easy ways to check for air pollution near your house.Read on to learn more.
以上结果指出，测定蹄氟是及时监测环境氟污染与早期诊断地方性氟病的一种比较理想的方法。
The above results show that determination of hoof fluoride is a practicable method of monitoring of environmental fluoride pollution in time and of early diagnosis of endemic fluorosis.
快速准确地测定水中矿物油的种类及含量，正确判断油污染的性质和来源，对于实施水环境监测管理及污染防治具有重要意义。
Identifying the species of mineral oil in water and measuring its concentration are needed to determine the contamination oil source and evaluating pollution fast and correctly.
结论同其他测定方法相比该法操作简单、速度快、效率高、无污染、费用低、无需复杂的前处理，可以直接对大量未知样品进行测定。
Conclusion Compared with other methods, the method is simple, rapid, high efficient, low expenditure, no pollution and with preparation undone and is suit for large quantity of unknown samples.
铁的测定由于污染原因，以致测试结果不能正确反映植株对铁的吸收规律。
Because of the pollution, the content of Fe in plant can not be obtained by the normal absorption law.
通过对邯郸市城区屋面雨水径流水质进行分析测定，发现城区雨水径流水质污染严重。
Through the analysis and measuring of the water quality of roof rain-runoff in Handan city, it is found that the water quality of roof rain-runoff is polluted seriously.
实施干预后监测燃煤氟污染，测定人群摄氟量和尿氟水平。
After intervention, the condition of fluorine pollution caused by burning coal, fluoride intake and urine fluoride concentration of the population were determined.
本文提出了一种利用非抑制型离子色谱法测定印制电路板表面六种无机阴离子污染物的方法。
A method for the determination of six inorganic anions on the surface of Printed Circuit Board (PCB) by non-suppression ion chromatography was proposed in this paper.
本文详细论述了库仑法快速测定低污染的校区生活污水和高污染的工业污水中的化学耗氧量。
This paper discusses in detail that coulometry quickly measures chemical oxygen demand of low polluted domestic sewage of the school and high polluted industrial sewage.
测定污染物是否存在以及量化污染物的任务主要由油漆工业的技术机构负责。
Procedures for determining the presence of these contaminants as well as the method of quantifying them are currently being evaluated by technical organizations serving the paint industry.
用氧弹燃烧灰化法对有机物中铁的含量进行测定，方法操作简便、快速，实验过程无污染，测定结果可靠。
Determining the iron content in organism by oxygen bomb burning incineration is easy to operate, fast to finish, free of pollution and reliable in different conditions.
他们期望通过毛发测定来监测该地区筹建的一个大型火电站的环境污染情况。
They intend to use their measurements to monitor pollution from a large coal-fired power plant planned for the area.
本文介绍了用离子色谱法测定无机阴离子，对污染严重的水样通常采用预处理柱法。
The paper describes the pretreatment of the waste water by using ion chromatography to determine inorganic ions, and discuss the preparation and regeneration of the pre-processing column.
为测量人暴露在环境中所受的化学污染量，有好几个研究团队正在开发一种可戴的测定装置，例如见测定生物圈污染。
Several teams are also working towards developing wearable devices to measure personal exposure to chemicals in the environment, for example (see "Bugging your biosphere").
本方法使用无污染溶剂、简便快速、准确可靠，适用于冷冻食品中硼酸的测定。
This is an easy, accurate, reliable and pollution-free method to determine boric acid in frozen food.
通过对着生藻类的测定，来反映水质的污染情况，为治理水污染提供依据。
We research water pollution by determine adherent algae, and provide basis to control water pollution.
以氧弹燃烧法破坏有机物进行元素测定，方法简便、快捷、无污染。
Oxygen bomb combustion method, which destroys the organic substances, is both simple and convenient as well as fast in operation, and pollution free in element analysis.
以污染区牡丹叶尖枯病的病情指数为依据，测定了128个牡丹品种对大气氟污染的抗性。
The resistance of 128 peony varieties to air fluoride pollution has been determined according to the disease index of peony leaf tip blight in the region of air fluoride pollution.
管道泄漏检测定位系统是目前管道泄漏检测中的一种典型装置，能有效控制管道泄漏引起的资源浪费和环境污染。
Pipeline leak detection location system is a typical device for pipeline maintenance, which can efficiently reduce the resource waste and the environment pollution caused by pipeline leak.
提出了在采用国家标准方法采集空气样，以四氯汞钾溶液吸收—盐酸副玫瑰苯胺分光光度法测定空气中SO_2时，由于空气受尘污染，可能导致测定数据偏低。
Using TCM as absorbent, and PRA spectrophotome. try to determine SO_2 in air, due to the air sample was polluted by dust, the SO_2 concentration may be declined.
根据机动车行驶工况和污染物排放系数测定，定量计算了近年来上海市机动车在实际行驶工况下的污染物排放量。
On the basis of measuring and testing on vehicle driving pattern and emission factor, pollution load from motor vehicle in Shanghai proper has been calculated.
研究测定了部分城市园林绿化树种对重金属中大气铅、镉污染物的吸滞能力。
The absorption and purification ability of some green tree species to heavy metal Pb and Cd in the atmosphere is measured and compared.
通过测定土壤样品的重金属含量，调查了上海七宝镇污染水系两侧与上海宝钢集团厂区的重金属污染状况。
In this paper, the stream Banks nearby Qibao town and the factory area of Shanghai Baoshan Steel Company were selected as the typical areas contaminated by heavy metals.
在水环境中测定溶解氧的浓度并分析排水沟中溶解氧量可能受到哪些典型的污染物所影响。
Measuring the concentration of dissolved oxygen in an aqueous environment and analyzing the availability of oxygen in waterways exposed to typical pollutants.
该方法仪器简单，操作方便，无污染且干扰小，样品经超滤可直接测定。
The samples treated by ultrafilter can be determined directly and the proposed method is simple, easy operation, no pollution and little interference.
该分析测定了炼油厂某些污染源和催化燃烧脱硫中试装置废气中挥发性硫化物组成，验证了方法的适用性。
The composition of volatile sulfide in waste gases from refinery and catalytic combustion desulfurization pilot-scale unit were analyzed, and this applicability of this method is verified.
该分析测定了炼油厂某些污染源和催化燃烧脱硫中试装置废气中挥发性硫化物组成，验证了方法的适用性。
The composition of volatile sulfide in waste gases from refinery and catalytic combustion desulfurization pilot-scale unit were analyzed, and this applicability of this method is verified.
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