1.
Consisting of or covered with loops.
多环的由环组成的或被环覆盖的
2.
Four, five and six ring PAHs have greater carcinogenic potential than do two, three or seven ring PAHs.
四，五和六环多环芳烃比二，三和七环的多环芳烃有更强的致癌作用。
3.
The surface of the moon is pitted with craters.
月球表面有很多环形坑.
4.
Characterization of Polycyclic Aromatic Hydrocarbons (PAHs) in Airborne Particles, Waters and Soils in Guiyang City;
贵阳市大气—水体—土壤环境中多环芳烃的研究
5.
A STUDY ON BIODEGRADABILITY OF HETEROCYCLIC COMPOUNDS AND POLYCYCLIC AROMATIC HYDROCARBONS;
杂环化合物和多环芳烃生物降解性能的研究
6.
Study on Distribution of Low Molecular Weight PAHs in Huangpu River;
黄浦江水体中低环多环芳烃分布规律的研究
7.
PAHs on the Environmental Impact of Soil Investigation and Reflection
多环芳烃对土壤环境影响的调查与思考
8.
Influences of grilling on content of polycyclic aromatic hydrocarbons and heterocyclic amine in meat product
烘烤对肉制品中多环芳烃和杂环胺含量的影响
9.
Multi-Resilient Optical Burst Ring's Channel Scheduling
光多环互连的弹性光突发交换环的信道调度
10.
Progress on Sample Pretreatment Techniques for Polycyclic Aromatic Hydrocarbons in Environmental Matrix
环境样品中多环芳烃的前处理技术研究进展
11.
Distributed Law and Environment Significance of Polycyclic Aromatic Hydrocarbons in Coal Burning Product
燃煤产物中多环芳烃赋存规律及环境意义
12.
How long have you worn that earring?
你戴那个耳环多久了？
13.
multinational nuclear fuel cycle centre
多国核燃料循环中心
14.
endless chain trench excavator
循环链式多斗挖沟机
15.
5.7 How long is it to circulate bottoms up?
需要循环多长时间？
16.
Some environments have many plants,
某些环境中有许多植物，
17.
We have quite a variety of pictorial story books.
我们有许多连环画图书。
18.
The wire threaded through small loops.
金属丝穿过许多小环。