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The efficient first asymmetric syntheses of-6β-hydroxy-7αH-eudesm-4-en-3-one, and its C-6 epimer were achieved starting from-dihydrocarvone, whichprovide a novel and efficient synthetic method to 6-oxgenated eudesmanes.

以-二氢香芹酮为原料，经五步反应，首次完成了6β-羟基-4(5)-烯-3-羰基桉烷及其6位差向异构体的立体选择合成，并为C-6位含氧官能团取代桉烷类化合物的合成提供了一种简便有效的方法。

The product equability is to be improved and an increased efficiency of machines and fiber feed systems is to be achieved .

改善了以原材料为导向的设计，通过提高无故障生产率极大地体现了经济的重要性。

Traffic marking lines are recognized using improved Hough transform and the equation of straight line is achieved.

实验证明，该方法能够正确检测和判断驾驶员是否处于压线行驶和换道行驶状态。

show that multi-wavelengths laser output can be achieved through increasing phase-shifts number and the laser wavelength varies with phase-shifts magnitude in multi-phaseshifts fiber grating with equidistance.

结论表明：等分相移光栅可以通过增加相移个数来实现多波长的激光输出，相移量不同激光波长的输出也不同。

Equilibrate the column with the prescribed mobile phase and flow rate, at room temperature or at the temperature specified in the monograph, until a stable baseline is achieved.

在室温或专论中指定的温度，用指定的流动相和流速平衡色谱柱，直至获得稳定的基线。

A pressure drop calculating equation of slug flow is achieved, which is based on the experimental data and the principle of force equilibrium.

利用根据力平衡原理建立的料栓平衡方程式并结合试验数据得出了预测栓流运动压力损失的公式。

He achieved a state of equilibrium .

他达到了一个平衡的状态。

And all this leading up to the March Equinox of 2010, when the new balance for the Earth will be achieved.

而这一切直至2010年3月春分，当地球的新的平衡将得以实现。

Has not achieved equity financing plan in 2006, the shortage of the Company's own capital

的快速发展，公司的资产负债率一直居高不下，同时由于公司2006 年未能完成股权融资计划

By setting up the mathematic model of the measuring method, the function of the changing rate of containing water ratio in crude oil and the equivalent capacitance of multi-electrode capacitance sensor were achieved.

摘 要：设计了测量原油含水率的多极板式电容传感器及测量电路；建立了多极板式电容传感器测量原油含水率的数学模型，得到了原油含水率变化量与多极板式电容传感器等效电容变化量之间的函数关系。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。