不易的

A larger error often occurs in measured results by multi-specimen J-R curve method because of the difficulty in determining the blunting line equation. On the basis of considering the effect of loading rate on plastic-flow stress, a new blunting line equation in dynamic loading has been obtained: J=2NK0.5(subscript εFΔa.

针对多试样J-R阻力曲线法因钝化线的不易确定性常造成测试结果J误差较大的情况，考虑了加载速率对塑性流变应力的影响，给出了一新的动载条件下的钝化线方程：J=2NK0.5

With this approach, a mathematical model of ASVG is developed. The method is simple and can be used to analyze the detailed internal properties of an ASVG. It overcomes the disadvantages of the two methods generally used, one is a method for modeling an ASVG by getting differential equations according to the topology of the ASVG circuit, which is very complicated and it is difficult to get a unified model expression of an ASVG; the other is a method for modeling an ASVG by considering the whole ASVG as a voltage source, which is too simple to analyze the detailed internal properties of ASVG.

该方法既克服了根据ASVG装置拓扑结构列写微分方程组的建模方法过于复杂且不易获得统一模型表达式的缺点，同时又克服了将ASVG装置等效为电压源的建模方法太简单而无法用于分析ASVG装置内部性质的缺点，具有建模简单又能分析ASVG装置的内部性质的优点。

The composite film appeared semitransparent and brown to yellow from optical microscopy. Results show that shorter time sol-heating results in thiner film with less surface roughness, less conglutination to base, and easily to disconnect, while longer time sol-heating results in thicker film with better conglutination to base and worse roughness. RDX distributes in the film everywhere on the whole but discretely on the scale of 2.4 μm according to EDS results. XRD curve of RDX/RF film shows the superposition of RF non-crystal bread curve and RDX crystals diffraction curve. RDX diffraction peaks are broadened and its crystal size is calculated to be lower to 43 nm.

实验所得薄膜半透明，呈棕红色至黄色；实验表明，溶胶恒温加热时间较短时，所得薄膜的单层厚度较小，较平整，但附着力小，干燥后易脱落；恒温加热时间较长时，所得薄膜的单层厚度较大，不易脱落，但表面平整性较差；能谱测试表明，薄膜中的RDX整体上分布较为均匀，但在测试点位间距为2.4μm的微观尺度上呈离散状分布；XRD测试表明，RDX/RF复合物薄膜表现为RF的非晶态馒头峰与RDX衍射峰的叠加，RDX衍射峰明显宽化，其晶粒度可低至43 nm。

Though Major Drillmaster is a serious man , as we talk about his family, his lips still stretches into an unnoticed smile, revealing that he is a tender man.

虽然主教总是表现的很严肃，但当我们问到他的家人时，他的嘴角仍是泛出了一丝不易察觉的微笑，透露出他其实是个温柔的好人。

With a view to necessities of component temperature retrieval and exiguity of valid spaceborne multi-angular data set, it is undeniable that it is of great practical significance to study component temperature retrieval algorithm based on multi-channel data set.

鉴于地表组分温度反演的必要性以及符合要求的星载多角度遥感数据的不易获得性，研究基于多波段遥感数据的地表组分温度反演方法，无疑具有非常重要的现实意义。

In the wet-process phosphoric acid production from the Hubei phosphate ore, one of the bothersome problems is that potassium fluosilicate and sodium fluosilicate scales are liable to form on the filtration system owing to its high potassium and sodium content, which greatly restrains the application of Hubei phosphate ore.

本文首先采用人工冷却系统模拟湿法磷酸生产的真空过滤系统冷却过程，研究垢物的析出规律，实验结果得知：垢物的主要成分为氟硅酸钠和氟硅酸钾，氟硅酸钠首先析出，结构致密，其次是氟硅酸钾，最后是二水硫酸钙，氟硅酸钠对氟硅酸钾有很强的结晶诱导作用；然后在三种生产中常用的不同的材质钼二钛、聚氯乙烯和聚四氟乙烯表面进行结垢试验，发现聚四氟乙烯表面最不易结垢，而在钼二钛表面最易结垢。

PART FOUR EFFECTS OF MIL-4RA EXPRESSION VECTOR ON ASTHMATIC AIRWAY INFLAMMATION AND TH1/TH2 CELL DISFUNCTION THROUGH INTRAPERITONEAL ADMINISTRATION In the study of part three, we treated the mouse asthmatic model by intratracheal administration with mIL-4RA expression plasmid and observed obvious therapeutic effects. But intratracheal administration belongs to one of the insult therapies.

第四部分：腹腔注射mIL-4RA重组载体对哮喘小鼠气道炎症及Th失衡的干预作用前一部分研究中我们通过气道局部干预途径，即气管内直接滴注的方式，观察到mIL-4RA真核表达质粒对哮喘小鼠具有很好的治疗作用，但气管内滴注毕竟属有创性治疗，存在需要实验条件高，有较大的风险性，不易反复进行等缺点，这势必大大限制其在动物实验及进一步临床研究中的实际应用价值。

For fans of modern shooters, it may be difficult to adjust to the directionless level layouts, vague objectives that can cause you to fail if you make one mistake, and rudimentary gunplay in which precision is noticeably lacking.

对于现代射击游戏的爱好者，可能不易接受这种方向感差的设计布局、可能因为你的一次射击失误就会失去完成任务机会的模糊的目标以及精准度不高的初代枪战模式。

This development ought to have given rise to the printing plate to lower prices, but progress is still hard to say, because to date, produced mainly as part of the CTP system sales price of the hardware is often dependent on the contract in size and length.

这种成长不梢答该引起这些印版的代价回升，但迟滞如何还很不易说，因为迄今为止，印版次给是息为ctp编制的一局部来采购的，硬件的代价不常凭借于公约洋印版的尺寸和不幼度。

Menu, according to Hindoo mythology, is an emanation from the supreme God; but the compilation which bears his name, though its exact date is not easily discovered, is, in point of the relative progress of Hindoo jurisprudence, a recent production.

按照印度的神话学，"摩奴"是至尊"上帝"的一种分出物；但是这个冠以他的名称的汇编，虽然其确切日期已不易查考，从印度法律学的相对进步来看，实在是一种近代的产品。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。