常見例句雙語例句A very low linear expansion coefficient sample carrier made from invar ensures that temperature change has no effect on the sample position.由不脹鋼制成非常低膨脹系數(shù)的樣品載臺(tái)保証溫度變化對樣品的位置沒有影響。The properties of coatings. e. g. tensile strength, expansion coefficient, wear volume under given conditions and porosity, etc. were tested.測定了塗層抗拉強(qiáng)度、膨脹系數(shù)、一定條件下的磨損躰積、氣孔率等性能。Nitrogen is the inert gases, low expansion coefficient, not easily with the environmental temperature rise for a long time, can maintain normal tire pressure, greatly reduce the flat tire.氮?dú)馐嵌栊詺廛n，膨脹系數(shù)低，不輕易隨環(huán)境溫度上陞而上陞，可較長時(shí)間維持正常胎壓，大大降低爆胎幾率。 返回 expansion coefficient