The purity of final product is 98 % with yield up to 96 % ( in terms of diethyl malonate ) .

目标产品纯度98%， 产率 高 达96%（以丙二酸二乙酯计）。

They were forced to yield up some of their lands during the war .

他们在战争中被迫 放弃 了一些土地。

Studies conducted locally and abroad show that honeybee pollination increases crop yield by up to40 percent .

在本地及海外进行的研究显示高 达百分之四十的蜜蜂授粉提高作物 产量 的 影响。

But the struggle to determine whether West Bengal 's paddy fields yield up crops or cars is symbolic of something much bigger : the difficulty India has in emulating the manufacturing-led models of countries that have hauled themselves from poverty .

但有关西孟加拉邦稻田究竟是应该 出产粮食还是 生产汽车的纠纷，象征的是一个更大的问题：在效仿脱贫国家以制造业为主的模式时，印度所遭遇的困难。

Planted cane may yield up to seventy tons per acre in good soil .

要是土质好，种的甘蔗每英亩可 产 到70吨。

A series of symmetrically tri-substituted triazines 3-10 were synthesized by solid grinding with yield up to 85 % .

采用固相研磨方法，合成了一系列对称三取代均三嗪衍生物3-10，分离 产率最高 可达85%；

Comparing with normal fertilizer application by hand fertilizer deep placement with this machine for paddy fields can save fertilizer up to 20 % with equal yield or increase rice yield up to 5 % ~ 10 % with equal amount of fertilizer used .

在相同施肥量的情况下，用机械深施基肥可 增产5%～10%，而在 保持产量不减的情况下，可节约肥料20%。

Methods of making the brain yield up its secrets .

使大脑 披露其秘密的方法。

Results indicated that the purity is 94.67 % with the yield up to 68 % .

由高效液相法测得纯度为94.67%， 收率 达到68%。

It was found that the modified pitch has excellent properties with a soft point of 112 ℃ and with its carbon yield up to 68.0 % . After curing treatment the carbon yield of the modified pitch can be further increased to 74.2 % .

结果表明，未固化沥青的软化点为112℃，残炭 率 达68.0%，而固化后沥青的残炭率高达74.2%；

The purity of target product was99 % with yield up to95 % .

目标产品纯度99%，相对于2，4-二甲基苯酚 收率 达到95%以上。

The corresponding nitro alcohols were obtained in yield up to 96 % .

所得硝基醇产物的 产率 最 高 达96%。

The US bond market suffered collateral damage with the 10-year US Treasury yield up 4 basis points to a two-month high of 2.22 per cent .

美国债券市场遭受附带损害，其中10年期美国国债的 收益 率 上升4个基点，至2.22%的两个月高点。

The surfactant Lewis base containing 6 sodium carboxylate groups was used to catalyze Henry reaction in water with the yield up to 96 % and the catalyst could easily be recycled and reused for more than 3 times .

另外，所合成的多支长碳链脂肪胺的六羧酸钠作为具表面活性的Lewis碱，可在水相催化Henry反应， 产率 高 达96%，催化剂亦可回收重复使用3次以上。

Are the citizens still refusing to yield up the town ?

市民们仍然拒绝 放弃那城池吗？

This procedure using antimitotic medium combining with serum free medium could eliminate fibroblasts effectively injure less Schwann cells and yield up to 98 % purified Schwann cells .

这种抗有丝分裂法结合无血清培养法，既能有效去除成纤维细胞，又能减少对SC的损伤， 获得的SC纯净度 可达98%。

After adopted procedure the yield up to 90 % and cost reduce 20 yuan / mg .

采用此工艺后 收率 提高到90%，成本下降20元/公斤。

The sea will never yield up its secrets .

大海将永远不会 公诸它的秘密。

And there was also a big difference between the infrared radiation spectrums of the moxa stick smoking and acupoints . In such cases the SDO yield up to 10.6 ± 2.2 % was achieved .

传统艾条薰灸与人体穴位红外辐射光谱也有很大差异.通过测量SDO的自发辐射光谱得到的SDO 产率的最大值为10.6±2.2%。

Increasing the value of G4 ( temperature tolerance coefficient ) would raise yield up to 20.0 % compared with yield under the same scenarios ;

适量增加水稻的遗传参数G4的值（耐热系数），可以提高 水稻品种的耐热性，同情景下，比种植原品种 增产 最高为20.0%；

This fountain - pen does not yield up its contents in a proper flow . To keep the water running unobstructed the workers are dredging the river .

这支自来水笔出水不 畅。为了保证水流通畅，工人们正在疏浚河道。

The result of the experiment proves : the catalytical effect of HPC / ZrO type heteropoly acid catalyser is most effective with ester yield up to 82 % .

实验结果得出：HPA/ZrO型杂多酸催化剂效果最佳，酯 收率 可达82%。

The catalyst prepared through macroporous aminomethyl resin showed the most efficient in the catalytic oxidation of ethylbenzene with moderate yields ( total yield up to 69.9 % turnover number 55.3 ) . The yields of these compounds are moderate .

其中，使用大孔氨甲基树脂为载体合成的催化剂能有效地催化乙苯氧化得到较好的转化率（总 收率 达69.9%，TON值达55.3）。

Experimental results indicated that the optimum conditions of esterification reaction are the molar ratio of o-phthalic acid n-butyl alcohol and sodium hydrogen sulfate 1:2 . 6:0 . 22 the reaction time 1 . 5 h and the yield up to 94.24 % .

实验结果表明：酯化反应的优化条件为邻苯二甲酸、正丁醇、硫酸氢钠物质的量比为1：2.6：0.22，反应时间1.5h。 产率 可达94.24%。

It 's polite to yield up your seat on the bus to an old lady .

在公共汽车上给老妇人 让座是礼貌的。

The result showed : 1 % Snailase + 1.2 % Cellulase + 0.5 % Hemicellulase is the best enzyme combination on isolation of protoplasts from potato tetrad after cold pretreatment the highest yield up to 78.05 % ;

结果表明：用1%蜗牛酶+1.2%纤维素酶+0.5%半纤维素酶的混合酶液能大量游离出经低温预处理的马铃薯四分体小孢子原生质体，原生质体的最高 产率 达78.05%；

Adipic acid in yield up to 75 0 % was obtained in 6 h in the presence of 8 hydroxyquinoline .

8羟基喹啉作助剂时，己二酸的收率 最高，反应6h，己二酸的 收率 可达750%；