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performance
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     complication performance.
     合并症表现。
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     Before Performance
     表演之前
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     (2)Studying on the performance.
     (2)实验性能研究。
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     4)vitamins and performance;
     4)维生素与运动能力;
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  performance
We study the performance of finite frames for the encoding of vectors by applying standard higher-order sigma-delta quantization to the frame coefficients.
      
A brief summary of the theoretical background of QSRR is followed by presentation of reversed-phase high performance liquid chromatographic (RP-HPLC) separation theories of applications to the reported QSRR.
      
A sensitive high-performance liquid chromatography (HPLC) method was established for the determination of concentration of 5-FU-1-acetic acid in the gastrointestinal contents and plasma of rats.
      
We give the exact worst case performance bound of MLPT proposed by Lee.
      
A simulated example is also given to show the visual performance of the estimations.
      
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This report summarizes observations made on the performances of forty introduced guava seedling trees planted on the grounds of Fukien Agricultural College since the Spring of 1959. The seeds were received on December 10, 1947 from Dr. I. J. Condit, Citrus Experiment Station, Riverside, California, U. S. A. Among this collection of guava seedlings, four outstanding ones were selected for continued studies. These include: Fukien Agricul- tural College No. 3, for canning purposes, and Fukien Agricultural...

This report summarizes observations made on the performances of forty introduced guava seedling trees planted on the grounds of Fukien Agricultural College since the Spring of 1959. The seeds were received on December 10, 1947 from Dr. I. J. Condit, Citrus Experiment Station, Riverside, California, U. S. A. Among this collection of guava seedlings, four outstanding ones were selected for continued studies. These include: Fukien Agricul- tural College No. 3, for canning purposes, and Fukien Agricultural College No. 9, No. 32 and No. 26 all for fresh fruits. Propagation was done readily by layering rootparts. Chinese air-layering using sphagnum moss as a rooting medium was also employed with success.

本文是作者等三年来将美洲番石榴引种在福州试栽情况以及果实性状的报告。文中指出四株实生树即福农3号、福农9号、福农32号及福农36号等较为优良。福农3号适合为食品加工之用,其佘三号均适合为鲜果之用。

This Paper discusces the fundamental Principle and design of the electronic millisecond difference exPloder. This instrument can supply electrical imPulses at a fixed time to a set of detonator. The advantages of this instrument are:[1] The time interval of two exPlosion may be adjusted from 1 millise-cond to 500 millisecond. The Process of adjustment is simple.[2]The error of time interval of this instrument is smaller than any ther instruments of this kind.[3] In this instrument the thyratrons are used as...

This Paper discusces the fundamental Principle and design of the electronic millisecond difference exPloder. This instrument can supply electrical imPulses at a fixed time to a set of detonator. The advantages of this instrument are:[1] The time interval of two exPlosion may be adjusted from 1 millise-cond to 500 millisecond. The Process of adjustment is simple.[2]The error of time interval of this instrument is smaller than any ther instruments of this kind.[3] In this instrument the thyratrons are used as the switch elements. The Performance of such switchs is stable. AntiexPosion may be avoided.

本文讨论电子毫秒微差放炮器的基本原理及设计,此仪器能按一定时间间隔向电雷管组供给电流脉冲,它的优点是: (1)时间间隔可在1毫秒至500毫秒范围内调节,调节手续很简单。 (2)此仪器的时间间隔的误差小于同类型的其他仪器。 (3)在此仪器中用闸流管作为开关元件,它的性能很稳定,拒爆可以避免。

Field experiments have been carried out in the past two years on the control of the potato late blight by dusting with a mixture of organic mercurial and hydrated lime. Started soon after the appearance of disease loci, dusting with the mixture of 1 part Seresan (2% ethyl mercuric chloride) and 9 parts hydrated lime or the same ratio of Ceresan (2.58% phenyl mercuric acetate) and hydrated lime, 5 times at 7 days interval, gave remarkable control of disease and increase in yield. As diluent, talc powder is much...

Field experiments have been carried out in the past two years on the control of the potato late blight by dusting with a mixture of organic mercurial and hydrated lime. Started soon after the appearance of disease loci, dusting with the mixture of 1 part Seresan (2% ethyl mercuric chloride) and 9 parts hydrated lime or the same ratio of Ceresan (2.58% phenyl mercuric acetate) and hydrated lime, 5 times at 7 days interval, gave remarkable control of disease and increase in yield. As diluent, talc powder is much inferior to the hydrated lime in field performance. Laboratory test of sporangium germination by Petri dish method have shown, however, that neither calcium ion nor hydroxyl ion influence the toxicity of mercurials. The role of lime in the control of potato late blight by the dust mixture must be sought from a different angle. LD50 of ethyl mercuric chloride, phenyl mercuric acetate and copper sulfate for the sporangia of Phytophthora infestans have been found to be 0.02, 0.058 and 0.15 ppm respectively.

两年来用有机汞消石灰混合粉防治馬鈴薯晚疫病的田間試驗获得了显著的效果。在发生中心病株时开始用1:9西力生消石灰或賽力散消石灰每7天撒佈1次,共撒4—5次可以大大地抑制病害的蔓延,从而提高产量。西力生和賽力散的防病效果相近。填充剂的比較上,滑石粉远逊于消石灰。石灰的鈣素或碱性不影响汞化物的杀菌力。抑制孢子囊萌发的有效浓度的室內测定,得到的抑菌力強度順序为西力生(折成氯化乙基汞)>賽力散(折成醋酸苯汞)>硫酸銅。LD50各为0.02、0.058、0.15 ppm。温室接种試驗指出有机汞粉剂經水冲洗后防病作用下降。

 
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