可分的

An important problem of calculus of variations used in constrained differential systems, i.e., the commutation relation of differential operator and variational oprerator, is investigated by means of Frobenius theorem of integrability.

利用Frobenius可积性定理，研究微分约束系统一个重要的变分法问题：微分运算与变分运算的对易关系。

Therefore, the labile rhizosphere soil solution fraction can represent the bioavailable fractions of metals to plants.

因此，根系湿土壤溶液可移动性级分能代表可为植物所利用的生物有效态。

Phylogenetic analysis of the long terminal repeatand env gene of htlv-1 gave a phylogenetic classification of htlv-1 genotypes into five major molecular subtypes: cosmopolitan, japanese, west african, central african, and melanesian. in order to understand the major genotype of htlv-1 prevalent in china, htlv-1 env gene was amplified by pcr and sequenced from peripheral blood lymphocyts of three htlv-1 carriers in the putian region of fujian province.

根据基因组及血清学反应可将其分为人t淋巴细胞白血病病毒1型（htlv-1）和2型（htlv-2），两型病毒基因组同源性大于60％。htlv-1主要侵染t淋巴细胞，可引起成人t细胞白血病、热带下肢痉挛性瘫痪或htlv-1相关脊髓病，并且在多种自身免疫病患者体内也发现了该病毒的存在。

Plant flower can be divided into two phases——from stem apex meristem tissue into flower meristem tissue and floral apparatus.

高等植物的成花可分为两个阶段：由茎顶端分生组织转变成花分生组织和花器官的形成。

Make incomplete heavy oil or olefin base crude oil comes to those who raise light oil close through deepness treatment method rate, finished product can serve as after classics of the benzine of generation, derv is purificatory, shan of the cent that weigh heat up in a steamer can serve as catalytic cracking or thermal cracking raw material, coke can serve as the raw material of production electrode, have ask rest method and continuous method etc.

使残重油或石蜡基原油通过深度加工方法来提高轻油的收率，产生的汽油、柴油经精制后可作为成品，重馏分汕可作为催化裂化或热裂化原料，焦炭可作为制造电极的原料，有问歇方法和连续方法等。

Results According to articulation position, 68.44% of misarticulations of functional speech disordes occurred in dental consonants; while 57.78% in palatal consonants; 23.11% in alveolar consonants; 24% in velar consonants; 14.67% in lateral consonant and 17.33% in retroflex consonants. According to speech pathology, 37.33% of misarticulations was palatalized misarticulation; while 22.67% lateral misarticulation; 21.33% inter-dental misarticulation; 8% palatalized misarticulation with lateral misarticulation; 5.33% lateral misarticulation with interdental misarticulation; 1.33% nasopharyngeal misarticulation and 4% others.

结果 功能性异常语音的异常语音出现率按构音点分：舌尖前音(68.44%)、舌面音(57.78%)、舌尖后音(23.11%)、舌根音(24%)和舌尖中边音(14.67%)、舌尖中音(17.33%)，它们可单独出现，也可两种异常音并存；按语音病理学分类：腭化音占37.33%、侧化音占22.67%、齿间音占21.33%、腭化音+侧化音占8%、侧化音+齿间音占5.33%、鼻腔音占1.33%、其它占4%。

Help advance somebody's career what what is appropriate to the occasion offers fixed rate is shady, maintain temperature to be in 12, 29 ℃ left and right sides, winter temperature appropriate is maintained in 16, 18 ℃, chun Xia two season grow exuberant, need taller air humidity, can undertake sparge; To soil the requirement does not father very, but the requirement keeps measurable and wet, grow seasonal, about 2 weeks apply fertilizer, and winter soil can work a bit and cool, reduce fertilization number; The method of minute of root is used more when breed; At Chu Xia season undertakes, return the method that can use cuttage additionally; Main pest has powdery flea, red spider, aphid, scale insect to wait.

栽培时宜给予一定程度的遮阴，并保持温度在12—29℃左右，冬季温度宜维持在16—18℃，春夏两季生长旺盛，需较高空气湿度，可进行喷雾；对土壤要求不甚严，但要求保持适度湿润，生长季节，约2周施一次肥，而冬季土壤可稍干和凉爽，并减少施肥次数；繁殖时多采用分根的方法；于初夏季节进行，另外还可采用扦插的方法；主要害虫有粉蚤。红蜘蛛。蚜虫。介壳虫等。

Inspection of the digital display thermometer can be made by adopting the standard resistance box as the signal input according to Pt100 graduation, or by coordinated adjustment in the thermostatic bath after connecting it with the temperature controller.

数显温度计的检验可根据Pt100分度采用标准电阻箱作为信号输入，也可与温控器连接后在恒温槽上联调。

The salivary gland malignant tumor which mostly originates from salivary gland epithelial tissue may occur in large salivary glands such as parotid gland, submaxillary gland, sublingual gland and minor salivary glands like palate gland and so on.

涎腺恶性肿瘤多为涎腺上皮组织来源的恶性肿瘤，可发生于大涎腺如腮腺、颌下腺和舌下腺，也可发生于小涎腺如腭腺等，具有组织分型多、细胞成分复杂等特点。

The hygienic and toxinfree Xinli PP-R pipes serial products are green and environmental construction materials, which have been recommended by the four ministries and commissions of the State Department, The products are heatresistant which means that the temperature of the supplied water can reach 95℃ under the specified long-term working hours, They are also corrosion-resistant and antiscale and can prevent any corrosion and rust in pipes, lavers and bathtubs.

&鑫利&PPR给水管系列产品，质量轻，20℃时的密度为0.89—0.91g/cm3，重量仅为钢管的九分之一，紫铜管的十分之一。由于重量轻，可大大减轻工人的施工强度。耐热性能好：瞬间使用水温可达95℃，长期使用时，当工作压力不大于0.6mpa时，水温可达75℃。这可满足一般生活、生产水温的需要，所以建筑给水PPR管一种较理想的热水管材。耐腐蚀性好：对水中的所有离子和建筑物内的化学物质均不起化学作用，不生锈、不会腐蚀。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。