, 2012 特殊的地理条件、气候环境，橡胶种植已成为景洪市的优势产业。改革开放以来，景洪橡胶种植面积增长迅速，橡胶种植改变了农业产业结构，增加了人民的收入水平。农作物播种面积逐渐下降，橡胶、茶叶种植呈现上升的趋势。以主要农作物种植面积为解释变量,对农民人均纯收入进行了多重共线性回归，得到：橡胶种植面积与农民纯收入的回归拟合程度很高，种植面积增加 1× 104hm2时，农民人均纯收入增加 335 元。橡胶种植面积增加所引起人均纯收入的增加额占改革开放以来人均纯收入增加额的 75.94 ...
薛静静, 沈镭, 刘立涛, 高天明
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Trueness evaluation of three intraoral scanners for the recording of maximal intercuspal position. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiWang S, Zhou Z, Yuan Q, Yue L, Yang S.
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[Preparation of chiral metal organic framework modified silica monolithic capillary column and its application in enantioseparations of chiral drugs]. [PDF]
Se PuSong RK, Liao G, Lin JL, Wu JL, Huang L.
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Questions about the numerical value and quantitative data transfer of tooth preparation-from experience guidance to digital guidance. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2021 Yu HY.
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Dianci bileiqi, 2009 专利申请号:CN200610064502.6申请日:2006.12.27申请人:清华大学深圳研究生院一种复合绝缘子端部场强控制方法,所述复合绝缘子包括芯棒、芯棒两端的金具及芯棒外覆盖的伞裙和护套,该方法的特征是:采用高介电常数硅橡胶材料注射成型不少于5%串长的伞裙和护套,其余伞裙和护套部分采用普通硅橡胶注射成型,其中高介电常数硅橡胶材料的相对介电常数为6～40。
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[Long-term prognosis and influencing factors of anterior composite resin restoration]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiChen W, Wu F, Wei X.
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[Preliminary study on three digital analysis methods for analyzing the distribution and area of occlusal contacts]. [PDF]
Beijing Da Xue Xue Bao Yi Xue Ban, 2020 Xiao N, Sun YC, Zhao YJ, Wang Y.
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[Novel submicron nonporous silica material modification with high carbon content and its application in reversed-phase pressurized capillary electrochromatography]. [PDF]
Se Pu, 2022 Xia Z, Soumia C, Wang W, Wang Y, Yan C.
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[Progress in the application of preparative gas chromatography in separating volatile compounds]. [PDF]
Se Pu, 2023 Mayira A, Zhong Z, Bai X.
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[Determination of seven tire antioxidants and their quinone oxidation products in fine particulate matter by high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuLiu F +5 more
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