The intradermal needle is a sort of specially made short needle used for embedding it in the skin or subcutaneously for relatively long time.
皮内针是以特制的小型针具固定于皮内或皮下进行较长时间埋藏的一种方法。
By theoretical analysing and calculating, we find the short needle valve fuel injector can further decrease the impact stress of the needle valve to the sealed conical surface.
经理论分析和计算发现,短针阀喷油器可以进一步降低针阀对密封座面的冲击应力。
Through the experimental study, the proper process about making nano-palygorskite material is dry-wet milling process. Get higher rates of nanometer spherical or short needle nanoparticles.
通过实验研究,坡缕石矿物纳米化制备的合理工艺方案为:干湿式球磨,可得到纳米化率较高的球状或短针状的纳米粒子。
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