On the basis of introduction of commonly used detection methods for hermetization, the demerits of differential pressure (D/P) measure are analyzed.
在介绍目前常用的气密性检测方法的基础上，分析了普通差压法的缺陷。
Based on P-well CMOS processes, a novel differential CMOS current conveyor is presented.
基于P阱CMOS工艺提出了一种新的差动输入电流传送器。
Results The differential diagnostic efficiency with MRI were significantly better than those with US and CT ( P<0.05) .
结果MRI对胆道梗阻性病变良恶性鉴别诊断的效能优于US和CT诊断（P<0.05）。
The differential test to simulate the practical current during the generator and transformer fail to work, and more over to vandalize the correctness of the p...
模拟发电机、变压器实际故障时的电流情况来进行差动试验，验证保护动作的正确性至关重要。
The relative contents of positive cells have also obvious differential (P<0.01) between FTN group or GZFL group and the rat model group, so do between FTN group and GZFL group (P<0.05).
两治疗组较模型组、两治疗中戈货孽要组之间阳性细胞相对含量也有明显差异（P<0.05）。
In this paper we will study the pseudo-differential operators P which satisfy conditions 1-4(or 4'). They constitute a class of hyperbolic operators with multi-characteristics.
本文对满足条件1-4（或4＇）的一类具重特征的双曲拟微分算子（1）进行初步的讨论。
In this paper we will study the pseudo-differential operators P which satisfy conditions 1-4(or 4'). They constitute a class of hyperbolic operators with multi-characteristics.
本文对满足条件1-4（或4＇）的一类具重特征的双曲拟微分算子（1）进行初步的讨论。
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