Conventional analysis techniques require small samples of the work for testing, further damaging the book. But analyzing the gases coming off of the old books is noninvasive.
常规的旧书鉴定方法需要提取样本进行检测，这会进一步损害书籍，而分析这些旧书散发出来的气味则完全是无害的。
A thorough history is fundamental to the diagnosis of cardiovascular disease and cannot be replaced by routine or random noninvasive and invasive testing which is expensive and inefficient.
一份详尽的病史是心血管疾病诊断的基础，是常规或任意的有创性和无创性检测所不能取代的，况且，这些检测既昂贵又无效。
The use of both noninvasive and invasive preoperative testing should be limited to those circumstances in which the results of such tests will clearly affect patient management.
应用侵入和非侵入术前检查应限于其结果将明显影响到病人管理的那些检查。
The use of both noninvasive and invasive preoperative testing should be limited to those circumstances in which the results of such tests will clearly affect patient management.
应用侵入和非侵入术前检查应限于其结果将明显影响到病人管理的那些检查。
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