产气的

For a bituminous coal used in steam boilers, the oil yield reaches its possible peak value of 13%.

针对锅炉用烟煤的实验结果表明：采用热解气作为反应气氛时焦油产率最大，相对无水无灰基煤达13%。

For a bituminous coal used in steam boilers,the ...

针对锅炉用烟煤的实验结果表明：采用热解气作为反应气氛时焦油产率最大，相对无水无灰基煤达13%。

Isolates isolated from maize and 3 isolates from rice, wheat, adzuki bean in ten provinces were identified as Curvularia lunata. Based on the culture characters, such as color of colony, aerial myeelia, the number of conidia, there were some difference among 43 isolates. Meanwhile, five types of conidium were compared in culture characters and virulence. In each single conidia culture there were different morphic conidia also and no difference in virulence was found among five single-conidium cultures.

收集并分离我国10个省的玉米叶斑病病原物40个以及水稻、小麦、红小豆上的C.lunata分离物3个；对分离物进行培养性状、产孢能力及形态特征的研究结果表明：分离物在菌落颜色、气生菌丝的繁茂程度、产孢量的多少等方面存在明显的差异；同一分离物内分生孢子在形态方面有差异，不同形态单孢继代培养后仍出现多种形态分生孢子，但各单孢培养系在致病力上无差异。

Cavitation erosion is related to bubbles.Bubbles pop out from drilling fluid in vacuum conditiun and form air mass against cyclinder well.For low resistance to pressure,air mass happen explosion when compressed,making cyclinder wall cavitated.

气蚀发生的条件与气泡密切相关，气泡在真空时从钻井液中溢出形成气团，并紧靠缸壁；气团在压缩时因承压能力低而产生爆炸，从而引起缸壁产生气蚀作用。

GWC, as the case may be, is the lower limit of producible gas.

同样，油气界面或气水界面是可产天然气所能达到的最低深度。

The synthesis of DEC by vapor phase directoxidative carbonylation of ethanol was evaluated as "green technology" route withmild condition, unharmful byproduct and high atomic economy.

乙醇气相直接氧化羰基合成DEC以CO，O_2和乙醇为原料，原子经济性高，原料易得，副产无害，是一条最具发展潜力的非光气法绿色合成工艺路线。

Nitrate serves as a terminal election acceptor in Alcaligenes faecalis,when it grows anaerobically with lactate and ammonia as the carbon and nitrogen sources,respectively.

粪产碱菌生长在NH_4~+和NO_3~-两种氮源的介质中时，优先利用NH_4~+，在好气条件下，NH_4~+的存在抑制了粪产碱菌对NO_3~-的同化作用。

The main objective of this research project is to modify the Methyl-Acetylene/propadiene selective hydrogenation reaction system of the No.3 Naphtha Cracker in CPC. The original gas phase reaction system was redesigned to a liquid phase reaction so that higher propylene selectivity was achieved and lower rates of propane and green oil were produced. To recover effectively the higher production of valuable propylene from the reaction system, the following fractionator was also redesigned.

本研究之目的在於修改中油公司三轻工场老旧的甲基乙炔／丙二烯选择性氢化气相反应系统，使成为液相反应系统，藉由液相反应的优异性，提高由MAPD氢化得到丙烯之选择率，同时降低丙烷及绿油产率，以增加丙烯产率，另亦修改丙烯精馏系统，以提升蒸馏塔提纯之效率。

However, the presence of (NH4)2SO4 aerosols increased the semivolatile organic compound production by 36%, which may be attributed to the weak acidity caused by the interaction of (NH4)2SO4 with water-contained organic material.

CaSO4气溶胶的存在对SOA产率曲线没有明显的影响，而(NH4)2SO4气溶胶的存在使气相半挥发性氧化产物的生成量增加36%，显著地增加了SOA的产率。

Cavitations is the major problems of designing water hydraulic valve, understanding the relationship between shape of valve and cavitations , avoiding cavitations is extremely important, this paper, the numerical simulation and visualization research of flow field is carried out to research relation between the flow field of poppet valve and the length of valve seat by finite volume numerical method.

气穴是研制水压阀存在的主要难题，认识阀口形状与气穴的关系，避免产生气穴现象是极其重要，本文应用有限体积数值计算方法针对阀座倒角长度变化对水压阀阀道内流场的影响进行数值模拟和可视化研究，得到了一些有益的结论：倒角长度的改变对阀口间隙以及阀芯锥面与柱面相接的地方的负压会产生比较大的影响

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。