微米级粒子 meaning in Chinese

micro-size particles

Traditionally , solid particles of micrometer or millimeter magnitudes were mixed in the base liquid . although such solid additives may improve heat transfer coefficient , practical application are limited because of the fact that the micrometer and / or millimeter - sized particles settle rapidly , clog flow channels , erode pipelines and cause severe pressure drops
迄今为止，在液体中添加的粒子都局限于毫米或微米级，由于这些毫米或微米级粒子在实际应用中容易引起磨损、堵塞等不良结果，而大大限制了其在工业实际中的应用。
Compared with the existing techniques for enhancing heat transfer by adding millimeter and / or micrometer - sized particles in fluids , nanofluids appear to be ideally suited for practical application with incurring little or no penalty in pressure drop because the nanoparticles are so small that the nanofiuid behaves like a pure fluid
在液体中添加纳米粒子，可以显著增加液体的导热系数，提高热交换系统的传热性能，而且由于纳米粒子的小尺寸效应，其行为接近于液体分子，不会象毫米或微米级粒子易产生磨损或堵塞等不良结果。