一种棘齿装置把线从线轴转到梭心上。A ratchet mechanism transfers the thread from spool to bobbin.操作杆进一步弯曲，线轴发出刺耳的吱吱声。The rod bent double, the reel shrieked and ratcheted.它的穿线过程很复杂,要用三个线轴.It has an elaborate threading process that uses thr...
...buffet cars in the railway company's bright red and yellow livery.上有铁路公司醒目的红黄专色的餐车The gondoliers wore green and white livery and silver plaques on their chests.船夫们穿着白绿两色的制服,胸前别着银质徽章.She was attended by servants i...
地质填图和低空放射性航测又继续探明了一批矿点.Subsequent discoverjes were made by geological mapping and low - level airborne radiometric surveys.进一步工作就是指更详细的填图, 坑探, 槽探等.Further work will involve more detailed mapping, pitting, trenching.最广泛的应...