目的探讨过氧化氢等离子低温灭菌对牙科高速涡轮手机(简称手机)的灭菌效果及对手机的损耗情况,以增加手机的使用寿命。
Objective To explore the effects and damages of low-temperature sterilizing with hydrogen peroxide gas plasma (HPGP) on dental high speed turbine handpieces, so as to prolong its service life.
由衬底损耗机制,讨论了衬底阻抗、氧化层电容和衬底有效介电常数对滤波性能的影响。
Increasing the substrate resistance and reducing the substrates' oxide thickness and coupled capacitances make a reduction of the substrate loss.
铝上有熔盐复盖,蒸发和氧化均较小,故铝的损耗亦小。
As molten aluminum is covered with salt, evaporation and oxidation losses are minimized.
而且还能避免粉体氧化、吸潮以及团聚,降低损耗。
Moreover, the metal powder grader can avoid the oxidation, moisture absorption and agglomeration of powder and reduce loss.
本文研究了有机过氧化物引发剂对低介电损耗的改性双马来酞亚胺树脂4501A固化反应的影响。
In this paper, effects of peroxide on curing reaction of modified BMI resin (designed as 4501a) with low dielectric loss were studied.
随着氧化硼含量的增加,晶粒尺寸均匀长大、介电常数和介电损耗都增加;
With the increasing of dopant content, grains grew up uniformly, and dielectric constant and loss increased.
介电损耗型材料二氧化钛与磁损耗型材料羰基铁复合,可调节磁性能。
The magnetic properties can be modified by compounding electric and magnetic loss material.
有用金属氧化物被还原为金属在钢中被吸收。减少钢水的损耗,提高产量。
Useful metallic oxide is reduced as metal absorbed in the steel, and reduce steel loss and increase steel output.
电热管用U型钢管,烧结氧化镁和电热丝制成,直接浸在水里热能损耗少。
The electrical heating tube is made of U shaped steel tube, sintered magnesia and heating wire. It is immersed directly in the water for preventing heat loss.
电热管用U型钢管,烧结氧化镁和电热丝制成,直接浸在水里热能损耗少。
The electrical heating tube is made of U shaped steel tube, sintered magnesia and heating wire. It is immersed directly in the water for preventing heat loss.
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