Compare M50FW080NB5TG by undefined vs HN27V101ARR-20 by undefined. View differences in part data attributes and features.
在刺参人工育苗过程中,换水是改善池水环境的主要技术措施,在刺参耳状幼体培育阶段,传统上采用网箱或滤鼓换水,存在换水效果差,工作效率低,劳动强度大,幼体易损伤,易造成病害交叉感染以及因筛绢破损造成幼体跑漏等问题.笔者在长期进行刺参人工育苗科研与生产实践中,对传统的换水方法进行改进,结合刺参耳状幼虫的生物习...
The structure of an oxygen electrode which can be formed at such a low cost that the oxygen electrode can be disposable. An oxygen electrode (2) is used for measuring the dissolved oxygen in a liquid culture medium, and comprises an electrode parent material (10) and a surface metal layer...
著名艺术家达·芬奇反复地将"黄金矩形"、"对数螺线"运用于其为数不多却幅幅经典的画作中,对他而言数学和科学的研究更令他沉迷,他更谦虚地自称为"业余画家"。达·芬奇... 豆子,徐建德 - 《美术界》 被引量: 0发表: 2013年 对数螺线在机械设计与制造工程中的应用 在给出对数螺线定义及其特有性质的基础上,以...
V Petricevic,A Bykov,RR Alfano 被引量: 0发表: 2006年 How to use of the material, as well as laser and Cr4 +-doped mixed alloy laser material (Wherein, M is tetravalent ions having a larger ionic radius than Mg A is greater than the Si more Mg M Si A y O Cr laser medium com...