Terms for subject Scientific containing thread of

English	Chinese
a fine thread thick 1/100 of an inch	英寸粗的细丝
a length of thread	一段线
a piece of thread	一根线
A thread of silk is so smooth that dirt cannot cling to it easily.	丝线很光滑、污物不容易粘在上面。
a thread of white smoke	一缕白烟
addendum of thread	螺纹齿顶高
seizure of the threads	螺纹卡住［咬死］
the accuracy of thread	螺纹的精度
width of thread	内径