覆膜

Generally, the FD treatment has decreased the densities of natural enemies and saprophagous insects .

旱作田天敌及腐食者密度低于灌溉田。

Landlocked location used for blocking the coolth hot stamping, covered with film, transfer, die-cutting, cutting rewinder, Super glazing, and so on.

如轮转烫印、寒烫印、、徙、模切、不不分切双卷、超等上光等。

The result shows that it can effectively prevent the flammable liquid volatilizezing from the solid alcohol fuel by coating polymer on surface for the environment - friendly purpose.

结果表明,通过高分子工艺,可以有效地抑固体燃料可燃性液体挥发,达到安全环保作用。

Compared with that of furane resin bonded sand,the feasibility of phenol resin bonded sand in forming a uniform coating layer in the inside mould surface is studied as well.

本文分析研究了砂在铸型型条件及光洁内表面形机理，并对比研究了和呋喃自硬砂在铸型内表面形均匀砂层可行性。