However, CRT has been met with some severe challenge from many new flat - panel display devices because CRT has some serious defects such as a greater bulk and a heavier weight and so on.

由于存在着体积大、重量重等固有的严重缺陷，CRT器件也一直受到众多新型平板显示器件的严峻挑战。

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However, when the skin of it was tubed for circumferential defects, the bulk could result in obstruction.

然而，当用它的皮肤卷成皮管修复环咽缺损时，由于太臃肿会导致阻塞。

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First, as to the bulk materials, we can change the temperature, pressure, carrier doping, magnetic field, and defects to tune their electronic states.

电子态的调控通常通过三种方式进行，首先，对于块体材料，我们可以利用温度、压力、载流子掺杂、磁场、缺陷等方法调控电子态的性质。

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First, as to the bulk materials, we can change the temperature, pressure, carrier doping, magnetic field, and defects to tune their electronic states.

电子态的调控通常通过三种方式进行，首先，对于块体材料，我们可以利用温度、压力、载流子掺杂、磁场、缺陷等方法调控电子态的性质。

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