The French have acted swiftly and decisively to protect their industries.法国人采取了迅速而果断的行动来保护他们的产业。"I'll call for you at half ten," she said decisively.“我10点半去接你，”她果断地说道。The proposed bill was decisively defeated in Par...
螺纹能牢牢地咬合卡紧。The screw threads will be able to get a good grip.如在螺母螺纹侧面切槽,则可实现静压作用.If grooves are cut in the flank of nut hydrostatic action is possible.计算中考虑了材料的非线性问题和螺纹间的接触问题.Material nonlinear and contact problem in con...