Helicopters fly in appalling weather to succour shipwrecked mariners.直升机在恶劣的天气条件下起飞前去援救遇难的船员。Mariners were also able to fix their latitude by using an instrument called astrolabe.海员们还可使用星盘这种仪器确定纬度。The ancient mariners tr...
Mariners were also able to fix their latitude by using an instrument called astrolabe.海员们还可使用星盘这种仪器确定纬度。Ideal are like the stars --- we never reach them , but like mariners , we chart our course by them.理想犹如天上的星星，我们犹如水手，...
你需要一种粘性很强的东西来修理那把椅子.You'll need a strong adhesive to mend that chair.在使用中或使用后能减少粘性。Reduced tackiness and stickiness during and after application.不应将挥发物加到环氧树脂中去改善它们的粘性.Volatiles should not be added to the epoxies to ...
Although he was experienced, he was not infallible...尽管他经验丰富,却并非不会出错。People’s faith in the Emperor was based on the myth that he was infallible.人们效忠君主是基于他永无过失的神话。She had an infallible eye for style.在时尚方面她的眼光错不了。Love and ...
唯一的声响是冰层噼噼啪啪碎裂的声音。The only sound was the crackle of breaking ice.人们开始四下察看，想弄清楚那声响来自何处。People began looking across to see where the noise was coming from.她一直在房间里工作，直到有声响打扰了她。She'd been working in her room till a nois...
探讨了 间甲酚 含量的容量分析方法.The determination ofm - cresol content by brominating volumetric method was investigated.利用间甲酚紫作指示剂定量地测定食醋中总酸的含量.This paper suggested am - cresol purple, which could determine quantitatively the content...
HIV - 1 integrase ( IN ) integrates viral DNA into host cells through two steps metal ions - dependent reactions.HIV -1 整合酶 ( IN ) 通过依赖金属离子的两步反应将病毒DNA整合入宿主细胞中.IntI 1 integrase gene and class 1 integron marker genes were ...