查询词典 L.A.

If the elliptical orbit, the orbital half-length l Drive; if the parabolic orbit, is infinity; if hyperbolic orbit, for a l negative.

若是椭圆轨道，为轨道半长l径；若是抛物线轨道，为无穷大；若是双曲线轨道，为一l负值。

Kepler's laws of Newton discovered the law of gravitation 10000 l ^ D has laid the foundation, then to the law of gravity, in turn, amended the third Kepler principle, namely, the ratio of 32 to strictly say no is a constant with the planets related to the quality of the l ^ D.

开普勒定律为牛顿发现万l^D有引力定律奠定了基础，而后，万有引力定律反过来又修正了开普勒第三定律，即比值32严格说不为常数而与行星l^D的质量有关。

The result shows: First, as coal changes to natural coke, its d(002) decreases, while its L and L increases; Second, there is a obvious borderline of structure parameters between coal and nature coke; Third, with the increase of metamorphosing degree, the diffraction apex of d(002) changes to higher angle, and the shape of apex changes from laigh to lofty.

结果表明：①随着煤向天然焦的转变，其d(002)减小、L、L等值增大；②煤与天然焦在结构参数上存在明显分界；③随着煤变质程度的增加，(002)衍射峰向高角度方向偏移，峰形由低矮变为高耸。

The resistivity was calculated following the equation ρ=PA/L, where ρ is the resistivity in kΩ.cm, R the electrical resistance in kΩ, A the latten area in cm2, and L the distance between electrodes in cm.

电阻率的计算公式后，ρ=尼龙/ L，其中ρ是在kΩ。cm电阻率，研究在kΩ的电阻，一个平方厘米的黄铜薄片地区，和L电极之间厘米的距离。

In order to research dielectric barrier discharge characteristics at characteristics at various exciting voltage peak V(subscript P-P and dielectric thickness l(subscript d, a DBD experiment system was established. Using Q-V Lissajous figure method, the effect of exciting voltage peak V(subscript P-P and dielectric thickness l(subscript d on the main discharge parameters were studied.

为了解介质阻挡放电在不同激励电压峰值V和介质厚度l下的放电特性，通过建立介质阻挡放电试验系统，采用Q-V Lissajous图形法研究了激励电压峰值V、介质厚度l对DBD主要放电参量的影响。

DPU at a concentration of as low as 10^(-7)mol/L retained the chlorophyll of Spirodela half-fronds under long-day conditions. From 10^(-5)~2×10^(-4)mol/L it prompted the synthesis of chlorophlly and the serine: glyoxylate aminotransferase activity, increased dry weight, and retarded the senescence of half-fronds.

在长日照条件下，10^(-7)mol/L的二苯脲对紫萍半叶状体就有保绿的作用，10^(-5)~2×10^(-4)mol/L的二苯脲还可以明显地促进叶绿素的合成和干重的增加，提高丝氨酸：乙醛酸转氨酶的活性，延缓半叶状体的衰老。

Under Soviet rule, the city usually went by the Russian name of Lvov; in independent Ukraine it is Lviv (or L'viv if you insist on the "soft sign", which turns the "l" into something closer to a "lyuh").

在苏联的统治下，这座城市通常被冠以俄语名Lvov；在独立后的乌克兰，它又是Lviv（或是L'viv，如果你坚持"轻音标志"的话，它改变"l"的读音使之接近"Lyuh"）。

So the paper is mainly study the rapid detection of pesticide with electrochemical and solid phase extraction techniques.A Single-sweep polarography was described for the determination of trace dichlorvos with sodium perborate and benzidine. The detection limit and the linear range were 1.0ug /mL and 3.0ug/L~7.5mg/mL (R2=0.9992) respectively.

利用敌敌畏可以催化过硼酸钠氧化联苯胺反应的特性，建立测定DDVP的单扫描极谱分析方法，此方法的灵敏度高，其对应的线性范围是3.0μg／L～7.5mg／L(R~2=0.9992)，检测限为1.0μg／L。

Faba root tip was studied through detection of micronucleus technique Both of nitrate (0.08 mol/L) and nitrite (0.80 mmol/L) with low concn of could significantly induce the formation of micronucleus of V. faba root tip (P.01), and showed an obvious dose effect, i.e. the permillage of micronucleus was in linear increase with rising up of mutagen concn within a certain range.

结果］低浓度的硝酸盐(0.08mol/L)、亚硝酸盐(0.80mmol/L)均能显著诱发蚕豆根尖微核的形成(P.01)，并呈现出明显的剂量效应，即微核千分率在一定范围内随诱变剂浓度的增加而线性增加。

Results By using containing ethanol-2mol·L -1 lithium chloride-water(2∶1∶5)solution,there is a very good secondary derivative differential pulse polarogram peak at -1.703 V.

结果 ：秦皮甲素在乙醇- 2mol·L- 1 氯化锂-水(2∶1∶5 )的底液中，于- 1.70 3V处出现一良好的二阶导数差示脉冲极谱法峰，其峰幅值与秦皮甲素在 0 。2～ 1.6mmol·L- 1 范围内呈良好的线性关系(r =0 。9998)，检测限为 5 0nmol·L- 1 。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。