要在长段距离的水平方向施用除草剂也很困难。

Herbicides are difficult to apply horizontally over long distances.

根据萨道夫斯基回归公式给出了距爆源不同距离的单段最大装药量。

The permitted maximum charge quantity per one detonating period is determined for the different distance between two tunnels by the Sodev's regression formula.

两条异面直线的距离也不必要找出公垂线段，只需利用向量的射影性质来解即可。

Two different surface straight lines distance not essential discovers male hangs the line segment, only must solve using the vector projective property then.

单倍行距用于段内，双倍行距用于段与段之间。

Single spacing is used within paragraphs, double spacing between paragraphs.

最后，我们来聊聊刚才图中位置最下方的几个内存段：BSS段、数据段和程序段。

Finally, we get to the lowest segments of memory: BSS, data, and program text.