而我国对超高压技术研究的深度和广度与世界先进水平相比还有较大差距，超高压设备也仍然处在研究试验阶段。
Comparing with other advanced countries in depth and width, the study of hyper pressure technology in our country has a gap; and hyper pressure processor still lies in the experimental stage.
临床试验是长期细致的肿瘤研究过程中的最后阶段。
A clinical trial is one of the final stages of a long and careful cancer research process.
在对罹患不同类型肿瘤患者进行临床试验的第一阶段，研究小组在21天内用30分钟静脉输液的形式给患者施用了四次针对性纳米粒子剂量。
In a phase 1 clinical trial in patients with various types of tumors, the team gave doses of the targeted nanoparticles four times over 21 days in a 30-minute intravenous infusion.
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