Polyester size is another important kind of size except (denaturated) starch, PVA and PAA. It is characterized by excellent adherence to polyester fibre and less pollution to the environment, etc.
聚酯浆料是除（ 变性） 淀粉、聚乙烯醇、聚丙烯酸（ 酯） 之外的又一类重要浆料，具有对涤纶纤维粘附性优异、环境污染小等特点。
Ordinarily it counts as a strike - except if the batter has two strikes on him. Then it doesn't count, and the batter has another chance to hit the ball.
一般它算一击，但二击以后的界外球就不算了，击球员还可以继续击赛。
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