...技术,可以生产出两面光的制品在外洋属于这一工艺范畴的还有树胶注射工艺(Resin Injection)以及压力注射工艺(Pressure Infection)RTM的基来历根基理是将玻璃纤维加强材料铺放到闭模的模腔内,用压力将树胶胶液灌注模腔,浸透玻纤加强材料,之后固化,脱模成型制品从...
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Both the negative pressure drainage vessel and the drop stitch are easier to cause infection.
负压引流管和缝线都容易引起感染。
The use of any antimicrobial for any infection, in any dose, and over any time period, forces microbes to either adapt or die in a phenomenon known as “selective pressure”.
针对某种感染使用某一剂量的某种抗菌剂一段时间,会迫使微生物或是适应,或是死亡;这种现象称为“选择压力”。
Sinus infection symptoms include thick, yellow, foul-smelling nasal discharge, pain and pressure or pain around the sinuses, and a lingering cold.
鼻感染的症状包括厚的黄色臭味排出物,疼痛和压感或者鼻窦痛,以及长时间感冒。
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