negative mold

基本解释

Finally, negative molds are created from the positive foam model and carbon fiber is hand layered into the mold.
最后，消极模具制造，从积极的泡沫模型及碳纤维是分层手进入模具。
Objective the Yenan separation leather blue negative bacillus the mold mushroom spawn distribution and its to the commonly used antibiotics drug resistance which infects in the hospital.
目的监测延安市革兰氏阴性杆菌在医院内感染的菌种分布及其对常用抗菌药物的耐药性。
The leftover parts from the mold—the plastic that fills the channels that take the hot plastic into the piece negative—fall down the machine, gets ground up, and put back into the production cycle.
塑料热成型之后的残余物会自机器上掉落下来，被碾碎，并重新进入生产循环过程中。