1.
Bottom margin
底部边距,底边,底线
2.
the established a baseline for the budget.
他们制定了预算的底线。
3.
the back line at each end of a tennis court.
网球场每一边的底线。
4.
VLBI (very long baseline interferometry)
甚长底线干涉量度法
5.
The Bottom Line of the Political Ethics and the Theoretical Construction of Bottom-line Political Eethics;
政治伦理的底线与底线政治伦理的理论建构
6.
The fullback went over from the 12-yard line
后卫从12码线上冲过底线得分。
7.
They judge the side lines and the base lines.
他们判断边线和底线球（界内或蜀外）。
8.
a clef that puts middle C on the bottom line of the staff.
把中央C音放在五线谱底线上的谱号。
9.
"the lower line of the figures, or figures and letters (as the case may be), coinciding with the draught line denoted thereby;"
该等数字的底线或数字与字母的底线须与所示的吃水线齐平，
10.
The flexible thread take-up eyelet holder, to offer the looper thread tension and release more details adjustment.
可微调的底线过线架，可针对底线的收放与松紧，做更精细的调整。
11.
The patented looper thread take-up put on the front of body, to clean the winding and adjustment easily.
前置式底线分线盘：专利底线分线盘外置于机体前侧，可轻易清除绞线、调整容易。
12.
a machine stitch in which the top thread interlocks with the bobbin thread.
上面的线与底线相连的一种缝纫机缝纫方法。
13.
The thread has not been passed through the notch of the bobbin case tension spring.
底线不能进入到梭壳的线张力弹簧下面。
14.
maintenance of submarine cables or pipelines
维护海底电缆或管线
15.
The bisectors of its base angles are equal.
底角的平分线是相等的。
16.
draw-down bottom pressure curve
抽汲期间井底压力曲线
17.
Line AB is the base of the triangle ABC.
AB线是三角形ABC的底边。
18.
an uneven hemline,ie of a skirt
凹凸的底边线（裙子的）