如果网绳太细，织出的网就不会太结实。

Sturdy nets can't be woven out of ropes that are too thin.

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球网应以一条绑在两侧网柱高15。 25公分处的悬网绳挂之，网柱外缘须离边线外15。 25公分。

The net shall be suspended by a cord attached at each end to an upright post15.25cm high the outside limits of the post being15.25cm outside the side line .

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用溶解度参数原则来评价涂料与网绳的涂装，结果表明，本试验研制的防污涂料对聚乙烯网绳无溶蚀作用。

Solubility parameter and results showed that there was no corrasive phenomenon between the polyethylene strand and the coating.

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