1.
Research and Implementation of the Reliable Message Handing System Based on X.400 Protocol;
基于X.400的高可靠报文处理系统研究与实现
2.
ammunition and 400 people,

弹药和400个人,
3.
It 's about four hundred metres .

大约有400米远。
4.
They quoted us ~ 400.

他们给我们报价400 英镑。
5.
It only has a brief 400-year history.

至今不过400年的历史。
6.
It's 400 yuan per day, unlimited mileage.

1天400元,不限里程数。
7.
Who won the girls' 400 metres?

谁赢了女子400米赛跑?
8.
Then came the 400-meter relay.

最后是400米接力赛,
9.
He won the 400 metres hurdles.

他在400米跨栏赛中获胜.
10.
That mountain is 400 metres higher than this .

那山比这山高400米。
11.
Summary of KDONAr-12000/20000/400 Air Separation Unit

KDONAr-12000/20000/400空分装置总结
12.
Expansion of S7-300/400 PLC Timer

S7-300/400 PLC定时器的扩展
13.
Comparison and Analysis of the "X shi X" and "X gui X" Formats;

“X是X”和“X归X”格式的比较探析
14.
Use of Function Condition f(a + x) =f(a - x) ,f(x + a) =f(x - a);

函数条件f(a+x)=f(a-x),f(x+a)=f(x-a)的应用
15.
On combined training in 400 m and 400 m hurdle;

高校田径队400 m与400 m栏结合训练探讨
16.
Solving Process of the Equation;

方程a(x)y″(x)+b(x)y′(x)+c(x)y=0的解法探析
17.
Look at the X in an X-ray.

看看x射线中的x。
18.
Overall dimension(LxWxH)

硫化机外形(长x宽x高)