Spread at least one coating on at least one surface of sandwich layer, contain the resin in the coating and the filler bead of 50% volume at least.
在芯层的至少一个表面上涂上至少一个涂层，涂层中含有树脂和至少50%体积的填料颗粒。
We made various models in different scales in order to study the new volume. The roof is clad in a light-grey pre-patinated Rheinzink coating.
为了研究新的空间，我们制作了不同规模的各种模型。屋顶镀上了浅灰色的莱茵锌喷膜。
Effects of volume percent of each component in oxidation solution, time and temperature of oxidation on thickness and tearing strength of blackened coating were studied.
研究了黑化液组分的体积分数、黑化处理时间及温度对黑化层厚度及撕裂强度的影响。
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