接触线

【机】 line of contact

接触的英语翻译：

contact; contiguity; get in touch with; meet; osculate; osculation; tangency
touch
【医】 c.; contact; contiguity; hapt-; hapto-; per contiguum; taction; tactus
touch

线的英语翻译：

clue; line; string; stringy; thread; tie; verge; wire
【医】 line; line Of occlusion; linea; lineae; lineae poplitea; mito-; nemato-
soleal line; strand; thread
【经】 line