1.Abstract: The authors discuss roundly source of loose earth fo r impact-deposit debris flow to develop taking pingchuan debris flow,one of the quite typical impact-deposit debris flows in southwest sichuan province，as an example in this paper. on the basis of detailed investigations in-situ,geotechn ial testing in Lab and theory analysis,all results indicate obviously that moder ate and bulky loose earth in giant debris flow situating in southwest sichuan mo untainous area are main institute,whose tribulation are consistent with landform s.Loose earth locating in mid-forepart catchment are quite unstable,so often be comes main source of loose earth of debris flow.Formation of loose earth is cont rolled principally by geologic and geotechnical environment while human actions is the secondary factor for loose earth to form.In many times,human actions prov ide loose earth through loose earth stability.
文摘:本文以极具典型的平川泥石流为例比较全面的分析了冲淤变动型泥石流的物源问题.根据现场调研及室内岩土分析进行的研究成果显示，川西南高山深谷地区的大型泥石流沟中的松散土体以中、粗粒段为主，其分布与地形密切相关；位于泥石流沟中、前部位的松散土体的稳定性最差，是补给泥石流的重要物源；松散土体的发育主要受控于地质及岩土环境，人类活动只能影响松散土体的稳定性.
2.The dialect is spoken principally in the rural areas
这种方言主要在农村地区使用。
3.Before and two weeks after treatment,the activity of NK cell,the subgroups of T lymphocyte,soluble IL-2 receptor (SIL-2R) in the peripheral blood were assayed. Lymphocytes from fetal spleen and thymus were isolated in vitro to prepare the LAK cells under the induction of rIL-2.Each cycle of treatment was proceeded by 3 infusions of(0 5～1 0)×10 9 LAK cells. The chemotherapy consisted principally of mitomycin.
选择胎儿胸腺淋巴组织作前体细胞，体外用重组IL－2诱导制备LAK细胞，每输3次LAK细胞为1疗程，每次输入细胞数为0?5×109，化疗以采用丝裂霉素、长春新碱、顺铂或卡铂、鬼臼乙叉甙为主的方案，治疗结果：本组患者治疗有效率（CR＋PR）达70％，同时患者免疫指标好转。
4.A branch of mathematics principally involving differential and integral calculus, sequences, and series and concerned with limits and convergence.
解析数学的一个分支，主要包括微分、积分和序列，并侧重于极限和收敛
5.The launching of euro and the completion of the EMU will be instrumental in reshaping the international monetary system, principally by making it more balanced and symmetrical.
欧元的发行和欧洲货币联盟的形成将在世界货币体系重新整合的过程中发挥至关重要的作用。这主要表现在使该体系更为平衡和对称。
6.Emphasis of the article is principally assay and compare usual compensative project, for instance: concentrated compensation in transformer substation, compensation of low-voltage system in transformer substation, compensation in distribution circuit, compensation in equipment of user, etc.
本文重点分析、比较了配电网常用无功补偿方案，如：变电站集中补偿、低压补偿、配电线路补偿、用电设备补偿等。
7.It consists principally of XYLEM and PHLOEM (water and food-conducting tissues respectively), and also contains strengthening tissue (SCLERENCHYMA) and packing tissue (PARENCHYMA).
它主要包括木质部和韧皮部(分别运输水分和养料)，还含有机械组织(厚壁组织)和填充组织(薄壁组织)。
8.but they were all the faces of a man of five-and-forty by years, and they differed principally in the passions they expressed, and in the ghastliness of their worn and wasted state.
但这些全是一个四十五岁男人的面孔，它们之间的差别主要在于所表现的情感和它们那憔悴消瘦的可怕形象。
9.Results: A total of 53 isolates were collected since 1996: (1)The proportion of pathogenetic bacteria, mostly are gram negative bacteria, derived principally from the intestinal normal aerobic flora;
结果 :1996年以来自肝病腹腔感染患者腹水中共分离致病菌5 3株 :( 1)致病菌的构成大多为肠道内正常需氧菌群 ,且以革兰氏阴性杆菌多见 ;
10.Laughing is the sensation of feeling good all over, and show it principally in one spot.
笑，是全身舒畅的感觉，而却主要表现于一个部分。
