针对海拉尔探区中深井排液难的问题，探讨了利用长钢丝绳抽汲排液及水力泵排液求产方法。
According to flowing back problem at Hailaer exploration district, a method of unflowing to acquire production by using long steel line and hydraulic pump is discussed.
从木材密度、抽提物、加工性能等方面讨论人工林难胶合木材胶合困难的主要原因，阐述改善胶合性能的主要措施。
This paper first discusses factors which may affect the gluability of poor-bonding wood from wood density, extractives and machining quality aspects.
本实验利用强阴离子去污剂SDS抽提家蚕幼虫表皮中难溶的几丁质结合蛋白。
In this study, SDS was used to extracted cuticular proteins from the silkworm larvae.
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