电线都缠结在一起了.The wires are all tangled up.我不知道我的头发为什么容易缠结.I don't know why my hair snarls easily.这种物理缠结往往是不稳定的.Such physical entanglements are usually labile....
那位候选人在南方出人意料地大为得手.The candidate made surprising inroads in the South.他曾在南方务农多年.He farmed in the south for many years.农业区大部分集中在南方.The farming area is centered largely in the south....
乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.这是冷却,滤出沉淀的二氯碘化铯.It is cool and filter the precipitated caesium dichloroiodide.反应器和输送管线被用少量二氯甲烷洗涤几次.The rea...