The nonstandard technique of using oxygen, deficiency capability of oxygen supplying equipment, the existed quality and design questions in lance, the unreasonable operation etc.
用氧技术不规范、供氧设备能力不足，喷头存在质量、设计问题，操作不合理等是影响氧枪枪龄的主要原因。
Results Compared with clozapine group, the score of social function deficiency was lower and that of life quality higher.
结果利培酮组社会功能缺陷评分低于氯氮平组，生活质量评分明显高于氯氮平组。
Of course the disadvantages are the lack of accuracy and deficiency in tone quality.
当然演绎的准确性、音色的质感欠缺也是其中不足。
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