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PVCs are irregular contractions that commence during the ventricles in place of the atria. The contractions typically beat earlier than the subsequent predicted heartbeat.请协助補充多方面可靠来源以改善这篇条目，无法查证的内容可能會因為异议提出而被移除。
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Despite its environmental implications, initiatives are underway to manage PVC waste by efficient recycling mechanisms, pushing in direction of a far more sustainable use of this priceless product.
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【専門家が解説】レーザー加工でチェッカープレート(縞板)の表面に扱い傷がつく理由
What's more, it has fantastic electrical insulation Attributes, rendering it an acceptable materials for wiring and cable apps.
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In combination with its structural Rewards, expanded PVC also provides terrific thermal conductivity Advantages. Anything you should think about if you plan on working with it for seating or simply bedding inside your boat, since it should help to insulate and keep heat.
熱成形は、押出成形やカレンダー成形であらかじめ生産した板状の製品を加熱し、空気や気圧を利用して型の形に成形する加工方法です。
حتی با وجود اینکه پیویسی اسباببازیهای نرم برای نوزادان برای سالها ساخته شدهاست، این نگرانی وجود دارد که این افزودنیها از اسباببازیهای نرم به دهان کودکانی که آن را به دهان میبرند نشت کند.
이 سعر شبابيك pvc 글은 화학에 관한 토막글입니다. 여러분의 지식으로 알차게 문서를 완성해 갑시다.