防御性

Key players at the base of the marine food web are diatoms (unicellulor algae with silicified cell walls) and their main predators, the herbiorous copepods.

本文对硅藻产生的防御性物质oxylipins的化学生态学及其在极低浓度下如何其作用进行了综述，同时对其生物合成、测试和化学防御对浮游生物群落结构的影响等进行了讨论。

Although some fifteen Divisions were tasked with defending the line during its life, this set of four figures specifically represent Gebirgsjger or Mountain Infantry troops.

只有18辆突击虎被制造出来，它们在战争中起到的作用非常有限，突击虎证明是卓越的防御性武器，但是行动缓慢且机械可靠性不高。

Similarly, after microinjection of glucocorticoid or mineralocorticoid into bilateral rVLM with the pretreatment of DKJ-21, the elevation of BP, HR and the pressor response induced by the dPAG stimulation was abolished, which suggested that adrenal corticoids may exert their effects on the incidence of stress-induced hypertension through their modulation onto the muscarinic recptors in the rVLM.

再进一步的实验表明，以DKJ-21预先处理的正常血压大鼠，由双侧rVLM分别微量注射肾上腺糖、盐皮质激素引起的升压、加快心率、以及增强防御性升压反应的效应也能被全部阻断，提示肾上腺皮质激素在rVLM增强心血管活动以及在应激致高血压发病机制中的作用可能是通过对该部位有关心血管神经元细胞膜上M-受体的调节作用而实现的。

Three B-24's were taken off the assembly line and reconfigured with lengthened fuselages, greater defensive armament, modified engine cowlings and a distinctive, single vertical tail.

三架B - 24下装配线后，加长机身重新配置，更大的防御性武器装备，修改发动机整流罩，单一的垂直尾翼。

Use them to guard center squares, pin enemy knights or defensively to break pins.

用象来保卫中心格，牵制敌方的马，或防御性地解除牵制。

Defence Policy is a kind of rule policy that make concessions in order to gain advantages adopted by Junker capital that wield power for going on maintaining themselves interest in German empire .

&防御性&策略是德意志帝国时期掌权的容克资产阶级为了继续维护自身利益而采取的一种以退为进的统治策略。

In addition, the insurance capital of Jiancang transportation, medicine and other defensive varieties, such as high-speed, Shandong, Jiangxi Yuegao Su, Rizhao Port, Shanghai Airport, the Datong-Qinhuangdao Railway, Shandong glass medicine, three fine Drugs, Guangzhou Pharmaceutical, Bao Asian medicine, rehabilitation medicine, and so on.

此外，在建仓，如高速，山东，江西Yuegao苏，日照港，上海机场，大秦铁路，山东玻璃医药交通运输，医药和其他防御性品种，保险资金，三大优良药品，广州药业，亚宝医药，康复医学等。

Since the pre-Roman period, a fortified settlement has existed on the hill where Carcassonne now stands.

&&从前罗马时期起，卡尔卡松现在所在的山上就有了防御性聚落。

They can also force the warmongers onto the defensive.

他们还可以迫使战争贩子到防御性的。

Intracellular bacterial symbionts which transform amino acids occur in a number of insect groups, including aphids and cockroaches.

这种防御性互利共生的例子见于一些草和产生植物碱的真菌之间，以及许多种植物和蚂蚁之间。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。