可证明的

Directional selection in disease field is the most simple, economic, and effective method for improving cotton resistance. Both land cotton and long-staple cotton high sensitive to the fusarium disease could improve its resistance in few years by this method and the farming properties were nearly unchanged.

试验证明，在供试材料中，不论是陆地棉的高感品种还是长绒棉的高感品种，经过在重病田或病圃中定向加压筛选，都可在几年内使其抗病性得到迅速提高，并保持其农艺性状基本不变。

We prove the solvability of the first eigenvalue problem for a class of quasilinear elliptic equations including distance potential with homogeneous Dirichlet boundary condition.

变分原理证明了一类含距离位势的拟线性椭圆方程齐次Dirichlet边界条件下第一特征值问题的可解性。

The model was used to predict air pollutant concentration along elevated road, and the caulated value coincides well with the meaaured data.

其模拟计算结果与实测数据相关性良好，证明该模式可根据车密度的变化预测高架道路的空气污染状况。

But, by semantic embedding the theorem derivations in object logic usually descends to ones in base logic, which not only requires users know the encoding quite well, but also lower the abstraction level of object logic, and readability and hand-reexecutability of proofs.

但是，语义嵌入方式下目标逻辑定理推导常常向基逻辑下降，这不但要求用户了解编码细节，而且也大大降低了目标逻辑的抽象性以及PVS一向追求的证明可读性和手工可再现性。

Tests show that the re-dispersible emulsoid powder can remarkably improve mechanical property and durability of mortar.

试验证明，可再分散乳胶粉对砂浆的力学性能和耐久性能都有显著的改善。

Some of the most striking parallels to Jewish Christian eschatology can be shown to be very late developments in Zoroastrianism.

一些最引人注目的平行线，以犹太基督教末世可被证明是非常晚的发展

Future release of CrackTcpip.sys, if the patch proves to be successful, will also be in the form of standalone executable, allowing user to install CrackTcpip in one click automatically.

以后的发布cracktcpip.sys ，如果修补程序证明，要获得成功，也将在形式独立的可执行文件，允许用户安装cracktcpip在一按自动。

The developed countries give reduction or exemption of customs duty on the basis of MFN tariff rate when they import products eligible for the preferential treatment with documentary evidence which comes from the preference-receiving countries.

发达国家可根据来自受惠国的书面证明对符合优惠待遇的进口产品在最惠国关税率基础上给予削减或免除关税。

Experimental result proves that the effectiveness of the model, and the model system has good expansibility and stability.

实验结果证明了该模型的有效性，且模型系统具有较高的可扩展性和稳定性。

The experimental results show that tracking error caused by mechanical vibration can be effectively suppressed, which indicates that the scheme is feasible.

实验结果证明了该系统可有效补偿由机械振动等引起的跟踪误差，验证了该方案的可行性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。