Methods Collagenase perfusion method and mechanical cutting method were used to isolate HSCs from rat fetal liver which were then cultivated by H-DMEM containing 10% fetal bovine serum.
方法：采用胶原酶灌注法及剪碎消化法分离大鼠胎肝干细胞，并用含10%优等胎牛血清的H -DMEM培养液培养。
The fiber formation regions are studied in mechanical chatter cutting method in which short metal fibers are machined.
本文研究了机械振动切削法制造金属短纤维的生成域。
Water jet, as a novel rock cutting tool, can be combined with mechanical method to increase penetrating efficiency.
水射流作为一种新型切割工具运用于石油钻井中，与机械联合破岩可提高破岩效率。
Metal cutting, the conventional method of mechanical machining, develops toward high-speediness, high precision and automation.
切削加工是机械加工最基本的加工方法。
The Mechanical pre-cutting method used in soft ground is a kind of preparative support, it allows tunnel excavation work to be conducted efficiently under the safe pre-lining.
软土中的机械预切槽法是超前支护的一种，在预筑拱的保护下可以安全高效地开挖隧道。
This paper presents a new method to evaluate the mechanical properties of formations in real time by means of cutting microhardness tests.
介绍了利用井场岩屑实时确定地层力学性质的新方法—岩屑显微硬度法。
This paper presents a new method to evaluate the mechanical properties of formations in real time by means of cutting microhardness tests.
介绍了利用井场岩屑实时确定地层力学性质的新方法—岩屑显微硬度法。
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