1.
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。
2.
Isolable carbocyclic compounds contain seven or fewer carbons in the cycle.
可分离的碳环化合物环内含七个或七个以下的碳。
3.
Piers No. 4 to 7 at Central Reclamation
中环填海区第四至七号码头
4.
Route 7 [Causeway Bay--Central--Sai Ying Pun]
七号干线〔铜锣湾─中环─西营盘〕
5.
VII. Taking Vigorous Action to Promote International Cooperation in Environmental Protection
七、积极推动环境保护领域的国际合作
6.
CHAPTER VII AGRICULTURAL RESOURCES AND AGRICULTURAL ENVIRONMENTAL PROTECTION
第七章 农业资源与农业环境保护
7.
Sometimes a World Series game will have about seventy thousand spectators.
有时候一个“世界连环赛”有七万观众呢。
8.
Study of C1q-Binding C7 Peptides with C1q-Inhibiting Activities;
具C1q抑制活性的C1q结合环七肽的研究
9.
Environmental Resources Legislation Post the 17th CPC National Congress;
十七大后我国环境资源立法走向研究
10.
Seven Innovations for Developing Circular Economy;
发展循环经济必须坚持七个“创新”
11.
The design of "Seven Segments Converter" under the circumstance of MaxplusII;
基于MAXPLUSⅡ环境下的七段译码器设计
12.
Effect of sevoflurane on sedation and circulation of neonates
七氟醚诱导对患儿镇静和循环的影响
13.
On the number of limit cycles of a Z_4-equivariant septic polynomial system
Z_4等变七次多项式的极限环数目(英文)
14.
intricate or ingenious puzzle consisting of boxes within boxes.
非常复杂、精制的玩具，常常是一环扣一环，（如七巧板、九连环等）。
15.
We are a well-established securities firm, since 1972, operating office in Central.
本公司成立于一九七二年，办公室设于中环。
16.
You were ruined, but now you are rich again.'
“我们环游地球一周，只要七十八天就够了。”
17.
The construction of buildings or facilities that will affect the electromagnetic environment of the airport.
（七）建影响机场电磁环境的建筑物或者设施。
18.
The comic strip2 first appeared in newspapers in1978.
报纸于一九七八年首度刊载这幅连环漫画。