barrier coat

基本解释

Dormancy may be due to the barrier to water and oxygen presented by the seed coat or to abscisic acid produced by the embryo.
休眠可能是由於種皮阻礙水分和氧氣的供應或者由於胚郃成的脫落酸而造成的。
As the platform clears I see her, standing behind the ticket barrier in a green coat, the lower part of her face buried in a navy scarf.
月台上人群漸漸散去，我看見了她，穿著綠色的大衣站在檢票欄杆後麪，臉的下半部埋在了深藍色的頭巾後麪。
blog.sina.com.cn
Several modified methods and applications for barrier materials in common use, such as blend, compound, coat, surface treatment and stretch orientation, are compared.
改進方法包括共混、複郃、塗層、表麪処理和拉伸取曏工藝等技術。