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Aiming at the faults inference network of AM500 coal minning machine this paper discusses "Rule_skeleton+rule_body" knowledge representation method of faults diagnoses expert system for coal minning machine and the interior structure of its knowledge base as well as the design of knowledge acquisition of the expert system.

以A M500 采煤机故障推理网络为对象，讨论采煤机故障诊断专家系统中&规则架＋规则体&的知识表示方法及其知识库内部结构，以及专家系统的知识获取设计。

Blood samples were drawn during different time after onset of chest pain in 60 patients with UA, 30 patients with stable angina pectoris and 30 patients with acute myocardial infarction. Blood was sampled only once per person in 30 normals. CKMM subbands were detected by the nonserial buffer electrophoresis method,and CK as well as CK-MB by velocity method. Student′t test was used for statisical analysis.

对60例UA、30例稳定型心绞痛和30例急性心肌梗死患者在胸痛发作后不同时间采血样(30例对照组仅采血1次)，采用不连续缓冲体系电泳方法检测CKMM3/MM1比值和用速率法测定CK同工酶和CK变化。

By the end of 2002, the Shengli oildom has developed 67 oilfields with 89.9 percent watercut and 76.3 percent of recoverable reserve. Furthermore, watercut of 19 oilfields including Shengtuo, Gudao, and Gudong and so on has exceeded 90 percent.

至2002年底，胜利油区已投入开发油田67个，平均综合含水89.9%，可采储量采出程度76.3%，其中胜坨、孤岛、孤东等19个油田综合含水大于90%，全油区常规水驱特高含水单元339个，动用地质储量15.2×10~8t，占油区动用储量的43.1%。

Larvas of P. litura and P. planifrons were fed with leaves sucked in purified fusion protein solution to observe the pesticidal activity. Group 1 and 2 were larvas of P.

融合蛋白经口途径分别饲喂购买及自采两种来源的斜纹夜蛾幼虫和采自荒弃及产果两种黄瓜地的瓜绢螟幼虫。

Preharvest BTH treatment was not obvious effect for firmess and the soluble

采前BTH 4次处理对果实采后的硬度、可溶性固形物含量无明显影响，但显著提高了可滴定酸含量和降低了果胶含量。

In addition,disease incidence and lesion area of muskmelon inoculated with T.roseum could be controlled effectively by preharvest BTH treatment in the period of storing.

此外，采前BTH 4次处理还能明显降低果实采后损伤接种粉红单端孢的发病率和降低病斑面积。

In order to understand the relationship between endogenous phytohormones and preharvest fruit drop of apples, contents of IAA and ABA in peduncle, bourse and the tissues around abscission zone of several apple cultivars were periodically analyzed during 8 weeks before harvest, and activity of cellulase in the tissues around abscission zone were periodically analyzed during 20 days before harvest, and ethylene evolution in fruit were analyzed in harvest time.

为了探讨苹果采前落果与内源激素之间的关系，在采前8周间定期测定了不同苹果品种的果柄、果台和离层形成部位组织中IAA、ABA含量；在采收前20d内定期测定了离层部位组织中细胞壁分解酶的活性；在收获期测定了果实乙烯的发生量。

Two muskmelons cultivars(cvs . Yindi and Huanghe-mi)was utilized as experimental objects in this paper.The possibility of preharvest BTH treatment that induced resistance was investigated in muskmelons,and the physiological mechanism was studied in this paper.

本文以&银帝&、&黄河蜜&厚皮甜瓜果实为试材，研究了采前BTH处理对果实潜伏侵染率、抗性代谢、组织结构、采后病害和贮藏品质的影响。

The control effects of preharvest azoxystrobin treatments on downy mildews, powdery mildews and latent infection rate of fruits and pink rot, Fusarium rot on the fruits of Cucumis melo cv.

研究了田间嘧菌酯处理对&银帝&甜瓜采前霜霉病、白粉病和果实真菌潜伏侵染带菌率及采后粉霉病、白霉病的控制效果。

The mining practice in Tongshan Copper Mine shows that the method of sublevel open stoping with subsequent once-filling and removing with blasting power is more suitable to mine inclined or gently inclined medium-thick deposits with high sulfur. This method can be used to reach the prepurpose including decreasing ore loss and dilution rates, reducing the quantity of mining works and raising the productivity of a stope.

铜山铜矿的开采实践表明，对于倾斜、缓倾斜中厚高硫矿床采矿方法的选择是至关重要的；根据其复杂多变的地质条件及国内外开采状况，提出选用爆力运搬分段空场嗣后一次充填采矿法较为适宜，该法可以达到降低损失贫化率，减少采准工程量，提高采场生产能力的预期目的。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。