This paper describes a method for the determination of polycyclic aromatic hydrocarbons in soil of green food producing area .

對(duì)綠色食品產(chǎn)地土壤中多環(huán)芳烴的氣相色譜質(zhì)譜聯(lián)用分析法進(jìn)行了研究久久99精品久久久久久国产荷花。

A method and system associated with the production of hydrocarbons are described.

描述的是一種與烴的生產(chǎn)有關(guān)的方法和系統(tǒng)。

The recovery rate is more than 90% for light hydrocarbons, and about 85% for ethane.

該流程輕烴回收率可達(dá)90%以上，其中乙烷回收率可達(dá)85%左右狂插美女阴道动态。

This may well hold good for any limited series of related hydrocarbons.

這種關(guān)系在一些有關(guān)烴類的有限系列中可能適用。

At the same time, they increased their cuticular surface hydrocarbons.

在此同時(shí)国产一级AA片在线视频，他們?cè)黾恿似浔砻娼琴|(zhì)層的碳?xì)浠衔铩?/p>

substituted hydrocarbons：取代烴; 取代碳?xì)浠衔?/p>

substantive convention 實(shí)質(zhì)性公約 | substituted hydrocarbons 取代烴; 取代碳?xì)浠衔?| subsulphate 堿式硫酸鹽

hydrocarbons: fuels：碳?xì)浠衔?燃料

greenhouse effect 溫室效應(yīng) | hydrocarbons: fuels 碳?xì)浠衔?燃料 | hydroelectricity 水電,水力發(fā)電

hydrocarbons: alkenes：碳?xì)浠衔?烯烴

horny 角狀的,粗硬的 | hydrocarbons: alkenes 碳?xì)浠衔?烯烴 | industrial methylated spirits 工業(yè)甲基化酒精

Hydrocarbons：碳?xì)浠衔?/p>

相較於聚丙烯(PP)材質(zhì)Nylon具有極佳之耐溫性及耐溶劑性,所以本公司開發(fā)出Super-Nylon 熔噴深層式Nylon濾心,以應(yīng)用於PP濾心不適用之高溫及特殊溶劑等領(lǐng)域如 碳?xì)浠衔?hydrocarbons)和 芳香類(aromatics)之溶劑,

Hydrocarbons：烴

碳?xì)浠衔?Hydrocarbon compounds | 烴 Hydrocarbons | 水電 Hydroelectric power