The methods of trust and elisa were used to detect syphilis antibody in 60 012 sera from gratis blood donors in jining . 22 of 60 012 were positive with positive rate of 0 . 037 % 使用trust及elisa方法检测济宁市中心血站无偿献血者血清60012份,结果梅毒抗体阳性22份,阳性率0 . 037 % 。
Then they fell silent , and drifted away upon their dream wings to the far regions of the earth to invite all the crowned heads and their families and provide gratis transportation to them 他们又陷入沉默，幻想的翅膀飘然而起，飞向全球的各个角落，邀请所有的王公贵族和他们的家人，并且白送他们路费。
In order to promote the development of china ' s nuclear power construction , in the early 1980s , china acquired gratis from the iaea the dot3 . 5 code for calculating nuclear reactor safety 为了促进中国核电建设的发展，中国早在80年代初期就从国际原子能机构无偿获得用于计算反应堆安全的计算机软件程序dot3 . 5 。
Article 22 popularization of agro - techniques to agricultural labourers by national agro - technical popularization setups shall , except as otherwise provided in the second paragraph of this article , be carried out gratis 第二十二条国家农业技术推广机构向农业劳动者推广农业技术，除本条第二款另有规定外，实行无偿服务。
They are not only strictly local but exhaustible ; though , at a given place and time , they may exist in much greater abundance than would be applied to present use even if they could be obtained gratis 它们不仅严格地局限于某些地点，而且是可耗尽的，不过在某一地点和时间，即令可无偿得到它们，它们的储量也会远远超过所需的数量。
To broaden sources , we must focus on the major populations who donate blood gratis , on the development and application of new transfusion techniques and on the construction of a social environment to respect these people who donate blood gratis 在“开源”方面要抓住无偿献血重点人群，抓住节约用血新技术的推广应用，抓住营造无偿献血光荣的社会舆论氛围的工作。
