为什么个股跟着大盘走:麻烦大家帮我翻译几个句子，谢谢~

Under the protection of hydrogen, heat it up to 20 to 30 degrees, keep it at this constant temperature for 3 to 5 hours, add in some NaCl with the percentage of 20% to 30% of the intermixture quality, heat it up to 60 degrees and keep it at this constant temperature for 1 to 3 hours, heat it and you will obtains this material.

In hydrogen protection, heating and 20 to 30 degrees, thermostatic 3-5 hours after joining the NaCl cooks quality 0.2-0.3 copies in 60 degrees thermostatic 1-3 hours after heating the material to be

Under the circumstances that the hydrogen is protected , heat it to 20 to 30 degrees,in the constant temperature adds NACL of 0.2-0.3 of mixture quality, heat and get this material after 1-3 hours for 60 degrees of constant temperature 3 to 5 hours later

With Hydric-Protection, heat up to 20-30 Centigrade degrees and then keep this temperature consistant for 3-5 hours. Add NACL,which is of 20-30% mass of mixed liquid, and keep it in 60 consistant degrees for 3 hours. Heat, and get the substance.