Water Saving Irrigation 1991 Issue 3 pen guan zhong zheng fa liang he xiao qi hou bian hua de mo ni ( ) mo xing fang cheng de jian li yu xiu zheng

pen guan zhong zheng fa liang he xiao qi hou bian hua de mo ni ( ) mo xing fang cheng de jian li yu xiu zheng
l.c. xi er wa ; la li .g. zhan mu si ; hu zhu jun ;

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mu dan jiang di qu cai tian pen guan jian she zhong de liang ge ji shu wen ti
wei chun yun ;

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fr-p300 xing ping yi shi pen guan ji xing zou ji gou de shi yan yan jiu
xian dong ;

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qu zhe de pen guan fa zhan li cheng xu fan si kai fa nong ye xing pen guan xu nu li
li jin chang ;

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xin zheng jie shui guan gai jing yan yin qi guan zhu
qiu hua ;

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huang hua cai pen guan xiao yi de shi yan yan jiu
wu he zhong ; ding ding rong ;

..............page:40-43

guan yu diao ya guan shui li ji suan gong shi de tan tao
Wang Wenyuan;Wang Shuqin;Han Huiling

..............page:33-35+64

qian tan jiang di pen guan gong cheng tou zi de tu jing
su xin yao ;

..............page:36-37

zhi guan huo mao guan shui tou sun shi jian hua ji suan fang fa
muluneh yitayew; zheng yao quan ;

..............page:61-62

mi qie he zuo gao hao pen guan tie xi dai kuan gong cheng jian she
li zhao xi ;

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de guo xin xing de di tou mao guan
xian dong ;

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di ya shu shui guan gai yong bao bi pvc su liao guan cheng shou nei wai ya neng li yan jiu
Yu Ling

..............page:16-20+63

wei yuan fa zhan duo gong neng xiao yi pen guan gong cheng

..............page:54

yi xing pen zui wu hua zhuang kuang de yan jiu
Li Jiusheng

..............page:28-32+64

you ping di pen tou shui liang fen bu xiang po di zhuan hua de shu xue mo xing
chen xue min ;

..............page:44-48

fa zhan zhong de xi wang zai pen guan xue zu cheng li hui shang de fa yan
yu kai de ;

..............page:6-7

yong hao tie xi dai kuan da li fa zhan jie shui xing guan gai
ye da long ;

..............page:20

ban gu ding pen guan xi tong bu zhi yu tou zi guan xi de tan tao
Zhou Weiping

..............page:21-27+63-64

bian zhi wu tu su zhan jie shu shui ruan guan xi tong tong guo chan pin jian ding
rui qin ;

..............page:48

quan guo pen guan xue zu cheng li da hui zai hu bei yun meng zhao kai

..............page:39

wei guan mao guan shui li she ji de zhong kong shui tou bi fa ( jun yun guan po ) wei guan shui li she ji ji suan fang fa tan tao zhi wu
Zhang Guoxiang

..............page:8-15+63

zai pen guan xue zu cheng li da hui shang de shu mian fa yan
feng guang zhi ;

..............page:5-6

wu han shi hong shan qu qing ling xiang yuan yi chang gan jie pen guan xi tong jian cheng tou chan
rui qin ;

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zhe jiang sheng zhao kai 1991 nian jie shui guan gai gong zuo hui yi
shi zi lu ;

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xin jiang zhong dian jia qiang xiao xing jie shui gong cheng jian she
liu zuo ;

..............page:60

hong gang shan cha chang pen guan gong cheng shou yi san nian lai fa sheng de bian hua
duan chun hai ;

..............page:53-54

hu bei sheng 1991 nian pen guan tie xi dai kuan gong zuo hui zai wu han zhao kai
cheng guo yin ;

..............page:54

wo guo pen guan shi ye fa zhan xian zhuang he jin hou ren wu zai quan guo pen guan xue zu cheng li hui kai mu shi shang de fa yan
zou guang rong ;

..............page:2-4

pen guan wu hua fang cheng he yun dong fang cheng
chang wen hai ; lu chu ;

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