1.
In our office building there is a hard and fast rule against smoking.
我们办公楼内严禁吸烟。
2.
In the interest(s) of safety, no smoking is allowed.
为了安全, 严禁吸烟.
3.
Petrol is highly combustible, so smoking is strictly forbidden during the handling of it.
汽油极易燃烧, 处理时严格禁止吸烟。
4.
Company policy strictly prohibits smoking in the office.
公司的规章制度严禁在办公室内吸烟。
5.
Smoking is strictly prohibited in the process of handling explosive materials.
＂在处理易爆物时，严格禁止吸烟。＂
6.
The teacher said that there was a hard-and-fast rule against smoking in school.
教师说学校有严格的禁止吸烟的规定。
7.
"Petrol is highly combustible, so smoking is strictly forbidden during the handling of it."
＂汽油极易燃烧，处理时严格禁止吸烟。＂
8.
Highly flammable, no smoking or naked lights
极易燃, 严禁烟火
9.
Do not permit smoking or open flames in any areas where liquid oxygen is stored or handled.
在任何储存和操作氧的区域，严禁吸烟或明火。
10.
Employees are forbidden to smoke on these premises, under penalty of instant dismissal.
严禁雇员在这些建筑物内吸烟，违则立即开除。
11.
9. Smoking in non-smoking places or smoking in front of non-smokers without asking
9. 在禁烟区吸烟或未征得不吸烟者同意就吸烟
12.
Smoking or open flames should be prohibited in hydrogen cylinder and tube storage and use areas.
严禁在氢钢瓶和管道储存和使用区域吸烟或明火。
13.
It is forbidden (for anyone) to smoke in this room.
禁止（任何人）在本室吸烟.
14.
Students are prohibited from smoking inside school.
禁止学生在校内吸烟。
15.
No smoking except in designated area
除指定区域外,禁止吸烟
16.
Smoking in this railway carriage is prohibited.
本节车厢禁止吸烟。
17.
Smoking is forbidden until the plane is airborne.
飞机升空时禁止吸烟.
18.
Post "No Smoking"and "No Open Flames"signs.
张贴“禁止吸烟”和“禁止明火”的标志。