英语释义

• a white crystalline strong-smelling hydrocarbon made from coal tar or petroleum and used in organic synthesis and as a fumigant in mothballs

片语

naphthalene nucleus翻译

naphthalene chloride氯代萘

naphthalene slurry萘浆

naphthalene diisocyanate萘二异氰酸酯

naphthalene sulfonate萘磺酸盐

Naphthalene D8八氘代萘

Techinical naphthalene中英

naphthalene salt萘盐

naphthalene scrubber洗萘塔

refined naphthalene精制萘

英汉例句

• effects of the catalyst preparation and reaction conditions of oligomerization on naphthalene conversion were investigated in detail.

  详细考察了催化剂制备条件和反应条件对萘转化率的影响。

• methods the blood selenium of 82 healthy elderly in xinxiang city was determined by 2,3-diamine naphthalene fluorescence method.

  方法采用改进的2，3二氨基萘荧光法测定了新乡地区82例健康老年人的血硒含量。

• naphthalene is the chemical found in mothballs, and one would think the distinctive odor would be noticeable at a level high enough to cause symptoms.

  萘是一种化学成分，有独特的香味，需要相当高的浓度才会引发上述癥状。

• the increasing concentration of oleum or the reaction temperature or the ratio of oleum to naphthalene results in the decreasing yield of 1,5-naphthalenedisulfonic acid.

  发烟硫酸浓度的增大、反应温度的提高、发烟硫酸与萘的配比的增大，都使得1 ，5-萘二磺酸收率降低。

• ultimately, it was determined to be liver toxicity from naphthalene secreted from an enormous colony of termites.

  最终的确诊结果是由于大量白蚁分泌的萘引发的萘中毒。

• the sodium naphthalene solution, can make the hole of ptfe surface atoms by erosion, so as to achieve the purpose of hole wall wetting.

  该钠萘处理液，能使孔内之聚四氟乙烯表层原子受到浸蚀，从而达到润湿孔壁的目的。

• a colorless crystalline organic acid, c6h 4(cooh) 2, prepared from naphthalene and used in the synthesis of dyes, perfumes, and other organic compounds.

  邻苯二甲酸，酞酸：一种无色结晶有机酸，c6h4（cooh）2，从萘中提取，并用于合成染料、香水和其他有机化合物。

• some defects such as quick slump loss, poor compatibility with cement and easy bleeding were found in current use of a great number of naphthalene superplasticizers.

  目前使用的大量萘系高效减水剂存在着坍落度损失大、与水泥的适应性差、易泌水等缺陷，本文运用物理多元复合技术对萘系高效减水剂进行了改性。

• the result can be used to predict sorption kinetics of phenanthrene and naphthalene to loess soils and, .

  研究了萘和菲在天然黄土和阳离子表面活性剂改性黄土上的吸附动力学过程。

• the effects of 1,2,4-trichlorobenzene and naphthalene on photosynthetic characteristics of rice leaves were studied.

  研究了1，2，4-三氯苯和萘对抽穗期水稻叶片光合特性的影响。

• the substance in question is a naphthalene sulfonate polymer called pro 2000 which (in the laboratory) blocks the process by which hiv binds to the cells in which it subsequently reproduces.

  怀疑是萘硫酸聚合物pro2000阻断hiv进入细胞繁殖。

• application and preparation technology of several kinds of alkyl naphthalene are reviewed.

  综述了各种烷基萘的用途和制备工艺；

• the major compounds in hexane extractives were terpene and naphthalene derivatives.

  日本花柏心材正己烷提取物中主要化学组分是萜烯类和萘衍生物。

• the p dichlorobenzene and naphthalene in mothproofing agent was determined by infrared spectroscopy.

  用红外光谱法测定了防蛀剂中对二氯苯和萘的含量。

• the purification principle and method of technical naphthalene by melt crystalization, especially the falling film crystalization are introduced in this paper.

  本文介绍了熔体结晶法，特别是降膜结晶法提纯工业萘的原理和方法。

• the 12 of low polar components of anabasis aphylla l. were separated and identified by gas chromatography-mass spectrometry. they are naphthalene and azulene species.

  采用气相色谱-质谱测定无叶假木贼低极性化学成分，分离鑒定了12个化合物，它们是萘类与类化合物。

• the process to prepare alkyl naphthalene by alkylation is the most ripe one, key technology of which is preparation of high efficient catalyst.

  烷基化制备烷基萘是目前最成熟的工艺路线，其关键技术是高效催化剂的制备；

• the theory of complex chemistry and construction chemistry was used to explain the mechanism of action between naphthalene hydroxyl oximino acid and wolframite.

  本文应用结构化学和络合物化学理论对萘羟肟酸与黑钨矿的作用机理进行了研究。