1.
Let the two lines be parallel.
假设这两条线平行。
2.
Man and woman are two parallel lines, and it is the nature of parallel lines never to meet.
男人与女人是两条平行线。两条平行线是不会相交的。
3.
Of, relating to, or designating two or more straight coplanar lines that do not intersect.
平行线的属于、有关或指出两条或多条不相交的共面直线的
4.
A pair of horizontal parallel lines drawn across a shield.
盾形纹章上的横条纹画在盾形纹章上的两条水平的平行线
5.
a surface generated by rotating a parallel line around a fixed line.
固定线的一条平行线围绕这条固定线旋转所产生的表面。
6.
Crossed Check A check that has two lines across it to denote that it must be paid into a bank account.
划线支票支票上加了两条平行线，表示必须存入某个银行账户。
7.
Chi and Pei have nothing in common；they are like two parallel lines that never intersect.
阿池在这里，沛沛就永远在那里，他们像两条遥远的平行线，永远不会交会。
8.
If two edges of a graph are incident to the same pair of vertices, then these two edges are called parallel edges.
如果一个图的两条边关联于同一对顶点，则这两条边称为平行边。
9.
One of the five parallel marks constituting a staff.
谱线五线谱上五条平行线中的一条
10.
The rotation required to superimpose either of two such lines or planes on the other.
角位这样的两条直线或两个平面中的一个置于另一个上旋转
11.
needlepoint stitch covering two horizontal and two vertical threads.
覆盖在两条水平线和两条垂直线上的花边针脚。
12.
Connect these two electric cords.
将这两条电线接起来。
13.
These two lines form a right angle.
这两条线成一直角.
14.
The two lines are perpendicular to one another.
这两条线相互垂直。
15.
The river is the boundary between the two countries.
这条河是两国的分界线。
16.
These two lines coincide with each other.
这两条线彼此相合。
17.
Cross a cheque, ie draw two lines across it so that it can only be paid through a bank
在支票上画两条平行线（则该支票只能经由银行兑现）
18.
The railway line runs parallel with / to the highway.
铁路线和那条公路平行。