A new pet census showed that cats now outnumber dogs by a whisker (7 million to 6.9 million).
新的宠物普查显示出猫的数量略微超过了狗的数量（700万比690万）。
The census is taken one time every four years in our country.
我国每四年一次人口普查。
Most often , though, census takers are politely received and assisted.
但是,在大多数情况下, 人口普查员会受到礼遇,得到协助.
Radiometric techniques are not always appropriate to the earth for uranium deposits.
放射性方法在铀矿普查中并不总是有效的.
Geochemical prospecting remains in the realm of the naturalist.
地球化学普查仍停留在自然王国.
Air photos are widely used in the search for petroleum.
航空象片广泛地应用在石油普查方面.
This fact has been fully appreciated as a consequence of airborne surveys.
这一事实经过航空普查完全弄清楚了.
Refraction is often applied as a reconnaissance tool in newly explored areas.
折射波法在新的勘探地区,通常都作为一种普查手段.
The assessment work seems to have discouraged this type of airborne survey.
普查工作似乎会使这种类型的航测遭到挫折.
Orientation survey to establish the most suitable search techniques are recommended.
为确定恰当的普查方法,人们建议踏勘性普查.
Uncle Sam's census takers do.
但山姆大叔的人口普查员们却知道.
The facile answer is a multimethod approach.
最方便的答案是多种方法的普查.
The uranium reconnaissance was undertaken in the U . K.
在英国境内曾开展过铀矿普查工作.
Comprehensive geochemical surveys are analysed.
广义的地球化学普查需要分析.
By 1860, the original six questions of 1790 had grown to 142 items.
到了1860年, 1790年人口普查时要问的六个问题已经增加到一百四十二个.