Experts suggested families with babies and pregnant women ditch the coil and use physical methods such as a mosquito net instead. Electric or liquid mosquito repellent is said to be acceptable.
专家提示有婴幼儿或孕妇的家庭避免使用蚊香，最好采用蚊帐等物理方法防蚊，也可使用电蚊香片或液体蚊香。
After my return to Strasbourg, I began to work in the area of physical organic chemistry, where I could combine the knowledge acquired in organic chemistry, in quantum theory and on physical methods.
返回斯特拉斯堡之后，我开始了在物理有机化学领域的研究工作，这样我就可以把我在有机化学、量子理论和物理方法等方面获得的知识结合在一起。
Bamboo fiber is a new kind of natural fiber extracted from bamboo by mechanical and physical methods.
竹原纤维是利用机械物理法直接从竹子中提取出的一种天然纤维。
It is featured by a chemical detecting mode instead of the conventional physical methods of heat or smoke sensing.
其要点是：它完全放弃了感温、感烟等“物理探火”的传统方式，而采用气敏传感的“化学探火”方式。
Geng Jianyi creates mechanical book installations to call attention to the physical methods in which we read books.
耿建翌为这次展览创作了一系列机械书，以引起观者对读书过程中物质方式的关注。
The preparation methods of metal nanocatalysts include chemical methods and physical methods.
纳米金属催化剂的制备方法包括化学法和物理法。
Bamboo fiber using physical methods for processing, do not add any chemicals, is 100% natural fibers.
竹原纤维采用物理方法进行加工。不添加任何化学试剂。为100%的天然纤维。
In this paper, the different physical methods of discarded PCBs reutilization were elucidated and analyzed.
对国内外资源化处理废弃电路板的物理方法进行了阐述、分析和比较。
Only metals which exist as free elements can be extracted by physical methods. These metals include gold and silver.
只有以自由态的形式存在于地壳中的金属才可以用物理方法来提取，这些金属包括金和银。
First level of processing mainly USES the physical methods, which removes the suspended solids and the inorganic substance in the water.
一级处理主要采用物理法，用来去除污水中的悬浮物质和无机物。
Both of the properties of wood and modification methods of wood-fiber were described, for example, physical methods and chemical methods.
简述了木质材料的性质和木粉改性的方法，如物理方法和化学方法。
The principle and possibility of using chemical methods and physical methods for increasing the reaction activity of alkali lignin are analyzed.
分析了采用化学和物理等方法增加碱木质素自身的反应活性的原理和可能性。
Based on their principles, these methods can be classified into chemical methods, physical methods, physicochemical methods, and biological methods.
根据测定原理，这些方法可被归类为化学方法、物理方法、物理化学方法和生物方法。
Based on both the properties of solution ana mathematical and physical methods, the properties of the solutions and their range of applications are surveyed.
从解的特性和数学物理方法两方面评述了各种解法的特点和应用范围。
A process based on physical methods to separate the components of spent Li-ion battery, such as LiCoO2, copper-aluminum foil, separator and electrolyte, was described.
提出了一种基于物理方法把废旧锂离子电池的成分，包括钴酸锂、铜铝箔、隔膜和电解液等分离的方法。
At the same time, the chemical and physical methods of coagulation, flocculation, settlement and sand filtering process are also feasible to remover COD in SBR effluent.
同时，混凝、絮凝沉淀及砂滤法等化学、物理方法对于去除SBR出水中的COD也是可行的。
At present, domestic and international testing for asbestos fibers use of the combination of mineralogical and physical methods which is completed in the laboratory after sampling.
目前，国内外针对石棉纤维的检测多使用矿物学和物理相结合的方法，取样后在实验室中完成。
At present, the main technologies for controlling coal gas are physical methods such as ventilation and exhaustion; however, these methods could not fully meet the safety requirements.
目前，我国的煤矿瓦斯防治技术主要为通风、抽放等物理方法，该类方法仍不能完全满足防治煤矿瓦斯灾害的安全要求。
In connection with the poor processibility of high polymerization degree poly (vinyl chloride), chemical and physical methods for improving its processibility were reviewed in this paper.
针对高聚合度聚氯乙烯加工性能较差的缺点，综述了改进其加工性能的化学和物理方法。
In connection with the poor processibility of high polymerization degree poly (vinyl chloride), chemical and physical methods for improving its processibility were reviewed in this paper.
针对高聚合度聚氯乙烯加工性能较差的缺点，综述了改进其加工性能的化学和物理方法。
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