The active component is suitably provided in the form of microparticles or microcapsules having an average diameter of less than 125 microns.
有效成分适合地以平均直径小于125微米的微粒或微囊形式提供。
2
The nano double-metal catalyst prepared by the preparation method has the advantages of uniform granularity of active ingredient grains, small grain diameter range and high catalytic activity.
其制备方法制备的纳米双金属催化剂具有活性组分粒子粒度均匀，粒径分布窄，催化活性高的优点。
3
The main work and production of the paper are as follows, (1) Long diameter saturated steam pipes belong to active thermodynamic objects.