钎焊铜及铜合金 、 银、钼等金属.Brazing of copper, copper alloys, silver and molybdenum etc.黄铜和青铜是两种广泛使用的铜合金.Two widely used alloys of copper are brass and bronze.研究了ICP -AES 法测定铜合金中微量硅的最优化条件.The conditions for determination of Si in C...
McCaul and his men began to make brazen attempts to recuit KGB men.麦克考尔和他手下的人还肆无忌惮地企图招慕克格勃的人.Quasars are the signatures of distant galaxies housing multi - spectral emanations outside our sphere of consciousness.类星体是远端银河...
A tooth which has been hit hard may discolour.受过重击的牙齿可能会变色。A tooth which has been hit hard may discolour...受过重击的牙齿可能会变色。Benzoyl peroxide can cause fabric to discolour on contact. Use with care.过氧化苯可能导致织物脱色, 请小心使用.Plastic...
有一会儿，他怔怔地注视着周围的景物。He was lost in the con-templation of the landscape for a while.索米尔周围的白垩质土壤出产著名的安茹葡萄酒。The chalky soil around Saumur produces the famous Anjou wines.长椅周围的人群渐渐散去了。The crowd around the bench began to melt a...
结果:洁治前不同牙周病组间患者唾液中6-K-PGFla含量比均有显著性差异.The difference in salivary 6 K PGFla between periodontal disease groups was significant before scaling.结论通过 自制 洁治联系卡,可以有效地落实牙周病 的 三级预防的相关知识,使牙周病患者愉快的接受治疗,有效 的 控制牙周病的发展.Conclusions Th...
These Chinese ivies climbed upwards and covered the entire wall.那些常春藤攀援而上,爬满了整面墙.The United Nations has been forced to revise its estimates of population growth upwards.联合国已经被迫上调了其对人口增长做出的预测。...projects worth upwards of ...