Staining as a result of organic cotton is a very high technical difficulty of the project, the world can do much of the staining of the enterprise, the standard has not yet developed.
由于有机棉染色是一个技术难度很高的项目，目前世界上能够做这个染色的企业不多，标准还未制定出来。
Despite a high en bloc resection rate, its technical difficulty and risk of complications limit the widespread use of colorectal endoscopic submucosal dissection (ESD).
尽管大肠病变的内镜黏膜下剥离术(esd)有高的整块切除率，但其技术难度和并发症的风险限制了它的广泛使用。
The curtain grouting project for the dam of Xiaolangdi Multipurpose project is large in size, big in difficulty, complex in geological conditions and high in technical requirements.
小浪底大坝帷幕灌浆工程规模大、难度大，地质条件复杂，技术含量高。
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