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From these original, rough calculations, designers can figure out how large of a powder charge is needed, based on existing powder, and then complex mathematical calculations can determine how thick the barrel has to be to withstand this charge, and how long the barrel must be so that the powder is done burning just as the shell exits the barrel.

对这些现有的大炮进行粗略的计算，设计者们可以算出，基于现有的发射药，需要多少的装药量。然后复杂精确的计算可以测定火炮身管需要怎样的厚度来承受这些装药的威力，需要怎样的长度以便使装药在炮弹出镗的时候刚好燃尽。

For food industry such as: carton for cans, sweet, chocolate, candy, biscuit, wine, and freezing food, and so on.

食品类的各种形式的袋式装盒，各种罐装、盒装的装盒，甜品、巧克力、糖果、饼干、瓶装式酒类、冷冻制品的装盒等。

For food industry such as: box for cans, sweet, chocolate, candy, biscuit, wine, and freezing food, and so on.

食品类的各种形式的袋式装盒，各种罐装、盒装的装盒，甜品、巧克力、糖果、饼干、瓶装式酒类、冷冻制品的装盒等。

For food industry such as: box for cans, sweet, chocolate, candy, biscuit, wine,freezing food,so on.

食品类的各种形式的袋式装盒，各种罐装、盒装的装盒，甜品、巧克力、糖果、饼干、瓶装式酒类、冷冻制品的装盒等。

For food industry such as: carton for cans, sweet, chocolate, candy, biscuit, wine,freezing food,so on.

食品类的各种形式的袋式装盒，各种罐装、盒装的装盒，甜品、巧克力、糖果、饼干、瓶装式酒类、冷冻制品的装盒等。

Plackett-Burman experimental design and the uniform experimental design were used to select the main factors of the ball milling pretreatment of corn stalk. The experimental results were analyzed by data processing software and well-fitted regression equation was established. Effects of ball milling parameters, such as raw material diameter, speed, ratio of raw materials, grinding media and alternating time, on the enzymolysis were analyzed. The optimal parameters of ball milling pretreatment of the corn stalk were as follows: particle size of raw material of 0.5 mm, speed of 340 r/min, the raw material content of 3.4 g, the number of ball of 15 (Ф= 10.0 mm), alternating running time of 5 min.

研究了玉米秸秆水解过程中球磨预处理工艺的优化，采用Plackett- Burman 试验设计和均匀试验设计法，用数据处理软件对试验结果进行分析，筛选出了球磨预处理过程中的主要影响因素，得到了具有较好拟合度的回归方程；通过分析原料粒径，转速，原料填装量，研磨介质，交替时间等球磨条件对酶解效率的影响，得出行星式球磨机粉碎玉米秸秆的最佳工艺参数为：原料粒径0.5 mm，转速340 r/min，原料填装量3.4 g，装球量15个（Ф=10.0 mm），交替运行时间5 min。

The paper describes the reason why the 1000MW ultra supercritical steam turbine with HP single bypass valve using HP casing start-up was not applied with HP exhaust non-return valve and introduces the methods to prevent over-speed for load rejection,HP casing overtemperature and water admission.

论述了采用高压缸启动方式的带高压一级旁路的1000MW超超临界汽轮机不设高排逆止门的依据及其防止汽轮机甩负荷超速、高缸超温与进水的方法：一是在高压导汽管上加装通风阀，二是在冷再管上加装通往凝汽器的排汽管，三是在冷再管的低位加装能显示水位、自动报警及自动疏水的疏水罐。

The manufacturer who increases the unit price of his product by changing his package size to lower the quantity delivered can, without undue hardship, put his product into boxes, bags and tins that will contain even 4-ounce, 8-ounce, one pound, two-pound quantities of breakfast foods, cake mixes, etc

生产厂家通过改变包装的尺寸来减少其产品的含量从而提高产品的售价，他们并没有付出额外辛苦就能把产品装进装早餐、蛋糕混合料的盒子、袋子和听罐中，可装的分量分别为4盎司、8盎司、一磅、二磅不等。

The manufacturer who increases the unit price of his product by changing his package size to lower the quantity delivered can, without undue hardship, put his product into boxes, bags and tins that will contain even 4-ounce, 8-ounce, one pound, two-pound quantities of breakfast foods, cake mixes, etc F/3L^k

生产厂家通过改变包装的尺寸来减少其产品的含量从而提高产品的售价，他们并没有付出额外辛苦就能把产品装进装早餐、蛋糕混合料的盒子、袋子和听罐中，可装的分量分别为4盎司、8盎司、一磅、二磅不等。

Lower the quantity delivered can, without undue hardship, put his product into boxes, bags and tins that will contain even 4-ounce, 8-ounce, one pound, two-pound quantities of breakfast foods, cake mixes, etc

生产厂家通过改变包装的尺寸来减少其产品的含量从而提高产品的售价，他们并没有付出额外辛苦就能把产品装进装早餐、蛋糕混合料的盒子、袋子和听罐中，可装的分量分别为4盎司、8盎司、一磅、二磅不等。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。