The paper describes a new type of tough and hard wear resistant composite gel coat and GRP mould preparation.
本文论述了一种新型坚韧耐磨复合胶壳的组成及其模具制作工艺。
The control effect was 92.3% to peach mould core disease by spraying preparation of PB97 in the field.
田间小区采用PB97制剂对桃霉心病的防治效果为92 .3 % ，可有效地控制病害的发生。
The present invention relates to a nano reticular composite membrane, its preparation method and mould including the described composite membrane.
本发明涉及一种纳米网状复合膜，其制备方法及包括所述复合膜的模具。
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