变变

The main problem of most patients suffering from heart failure is the decreased force of cardiac contraction. Meanwhile, the heart inotropic, chronotropic and dromotropic effect is in a state of intricacy and constant flux due to a variety of patients' condition or treatment.

大多数心力衰竭病人的主要问题是心肌收缩力的降低，与此同时，心脏变力性、变时性和变传导性也因病情的不同或者治疗的不同而处于一种复杂的、不断变化的状态。

Since any heart disease may finally cause heart failure, it's an absolute essential procedure to carry out real-time monitor and estimation of the heart inotropic, chronotropic and dromotropic effect in the diagnosis and treatment of cardiovascular diseases.

由于任何心脏病最终都有可能导致心力衰竭，因此在心血管病诊断和治疗过程中对心脏变力性、变时性和变传导性进行实时监测和评估是非常必要的常规工作。

ECG is the best way to monitor cardiac inotropism and chronotropism, but it is helpless to estimate dromotropism.

心电分析是心脏变时性和变传导性的最佳监测方法，但不能用来检测心脏的变力性。

For example, electrocardiogram, which is the optimal method for analyzing chronotropism and dromotropism, but it can not be used to measure myocardial inotropism.

例如，目前，心电图检查是心脏变时性和变传导性的最佳监测方法，但不能用来监测心脏的变力性。

The North Atlantic inter annual variability associated with the North Atlantic Oscillation is examined in a 300 years integration of Bergen Clima te Model. The physical processes dominating the interannual scale tripolarpattern variability mode of the North Atlantic sea surface temperature are analyzed.

检验了一个全球海气耦合模式对北大西洋年际气候变率的模拟，讨论了导致这种年际变率型的物理机制，并分析了其对年代际变率的可能影响。

We have grown up and the modern China as well. We changed and China as well. We have a glance back, will our homeland turn back to have a look as well? Could the commemorable and beautiful childhood never change?

我们长大了，现代的中国也长大了；我们变了，中国也变了；我们回头看的时候，我们的祖国是不是也会一样回头看一看：那些值得留恋和美好的童年，可不可以永远都不要变。

Compared with the old variable displacement wobble plate compressor, it has compacter structures, smaller size, lighter weight, higher efficiency, higher reliability, lower noise, higher rotational speed operation and wider range of displacement.

变排量斜盘式压缩机是继变排量摇板式压缩机之后的一种新型变排量压缩机，具有零件少、结构紧凑、尺寸小、重量轻、效率高、耐久性好、振动噪声特性好、高转速运行和排量调节范围宽等特点。

The paper aim at the three-phase voltage source SPMW-inverter, which is applied in variable-speed wind turbines system, adopts the theory of nonlinear counterchange and nonlinear feedback, creates the three-phase voltage source PWM-inverter's nonlinear model, and deduces it's feedback linearization equation, consequently, the three-phase voltage source PWM-inverter active and reactive current decoupling control is proposed.

该文针对变速风力发电机组系统所用的三相电压型SPWM 逆变器，采用非线性变换和非线性反馈理论，建立了三相电压型 PWM 逆变器非线性数学模型，推导出其反馈线性化方程，从而得出三相电压型 PWM 逆变器有功电流和无功电流的解耦控制策略。

The calculated results are consistent with those of phenomenological crystallographic theory.

本文中提出的关于相变机制的小转动物理模型，结合西山相变机制和K-S转变机制的计算结果比较，很好地解释了Fe-31Ni合金的相变过程。

The comprehensive evalucation resulted in a strong drought resistance group including ZXY04P-201、ZXY03P-227、ZXY03P-122 and ZX Y04P-136, a weak drought resistance group including ZXY04P-101、ZXY04P-89,ZXY04P-239 and a intermediate group including the others according to the the above indicators. 3. The results of study on drought mechanism for 4 Dactylis glomerata L. under continuously water stress and rewatering show: the water saturation deficit of leaves arose hastily, and ZXY04P-239 changed most obviously while ZXY04P-201 changed only slightly under drought stress. ZXY03P-173 and ZXY04P-201 increased in the relative plasmalemma permeability and the soluble sugar content while thant of ZXY04P-75 and ZXY04P-239 showed the trend of initial increasing, reaching the peak at the 8th day, then decreasing under drought stress.

20份鸭茅种质幼苗期抗旱性研究表明，干旱胁迫条件下，所有材料的株高、生物量显著下降，叶片脯氨酸和可溶性糖作为重要的渗透调节物质，其含量迅速增加，质膜相对透性的数值变大，细胞膜受伤害程度增大，水分饱和亏缺值变大，植物保水能力变弱，胞间CO2浓度增大；净光合速率、蒸腾速率、气孔导度和叶绿素含量等指标测定值减小，通过20份鸭茅种质苗期抗旱性综合评价，发现ZXY04P-201、ZXY03P-227、ZXY03P-122、ZXY04P-136属强抗旱性材料，ZXY04P-101、ZXY04P-89、ZXY04P-239属弱抗旱性材料，其他属于中等抗旱性材料。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。