The drugs work well at first but gradually lose their effectiveness.

这些药效果起初非常好，但后来逐渐失效。

They’re doing tests to evaluate the effectiveness of this herb as an antiseptic.

他们正在检测这种草药作为杀菌有效性。

To assert this is to denigrate the effectiveness of the police.

坚持这一点就是贬低警方办事能力。

Objective To explore the comprohensive treatment for acut chlorphenamidine poisoning and to improve therapeutic effectiveness.

目探讨急性杀虫脒中毒综合救治,提高疗效。

Bad diction marred the effectiveness of his speech.

措词不当影响了他演说效果。

Having suffered grievously from biological weapons attacks in the past, China supports work that helps comprehensively to strengthen the effectiveness of the convention. It has actively participated in the work of drawing up a Protocol of the Ad Hoc Group of States Parties to the BWC established in 1994, and has made contributions to the progress of the negotiations on the Protocol.

中国在历史上也曾深受生物武器之害。中国支持全面加强《禁止生物武器》有效性工作，积极参加了于1994年设立缔国特设工作组有关制《》议书工作，并为议书谈判取得进展作了贡献。

In case both parties agree to let the alienator continuously possess the chattel when the real right of a chattel is alienated, the real right shall go into effect upon the effectiveness of the agreement.

动产物权转让时，双方又由让人继续占有该动产，物权自该生效时发生效力。

We Studied the selection of praziquantel dose with EPG in the treatment of Clonorchiosis. and the selection of praziquantel dose with body weight in its treatment.compared the effectiveness of both.

以EPG选择吡喹酮治疗华支睾吸虫量，并与以体重选择吡喹酮量疗效相比较。结果显示，二者疗效相同，而前者应用量小，尤以轻、中度感染更为明显。

At the American Academy of Forensic Sciences meeting in Denver, Colorado, on Wednesday, Thali demonstrated the effectiveness of his method with a Virtopsy image of a decomposing head.

星期三，在科罗拉多丹佛美国法医学院召开会议上，塔利用分解头部虚拟尸检影像证实了这种方法效果。

Objective The aim of this study was to compare the effectiveness of dynamical system cutterbar via nasal endoscope for adenoidectomy by mouth and rout curettage of adenoids.

目比较鼻内镜下经口动力系统切割器行腺样体切除术与常规腺样体刮除术疗效。

Refusing the straightjacket of political totalitarianism only to put on the straightjaket of religious conservative totalitarianism merely changes the design of the gag not its effectiveness.

脱下政治极权主义外衣而换上宗教保守主义外衣，不过是换了箝制言论自由外观，并不能促进言论自由。

Based on the theory of interaction of fluid-solid, tridimensional FEM model of dam-aircushion-water is introduced.The vibration isolation mechanism and effectiveness of air cushion has been studied.

摘要从流固耦合理论发，介绍了坝体-气幕-库水隔震三维有限元理论模型，研究了气幕隔震减震机理和隔震效果。

In this retrospective multi center analysis we studied the effectiveness of TDF monotherapy in patients with HBV monoinfection with respect to virologic parameters and resistance.

在此次回顾性多中心分析中，我们在考虑毒学参数和抗药性情况下研究了TDF单一疗法在单纯感染HBV患者中疗效。

To study the effectiveness of inserting central venous catheter was inserted into pericardial cavity for the drainage and treatment of lung cancer hydropericardium.

研究中心静脉导管持续心包引流并注入顺铂、白细胞介素Ⅱ等对治疗恶性心包积液疗效。

Objective: To determine the analgesic effectiveness and safety of propofol anesthesia to perform forcep curettage for pregnant women with 10 13 weeks.

探讨异丙酚麻醉下行孕10～13周钳刮术镇痛效果及安全性。

Objective To evaluate the effectiveness,benefit,feasibility and extrapolability of the clinical pathway developed in urban hospital for the patients with hypertension without complication.

目评价所建立适合我国城市医院患者单纯高血压专科诊疗路径效果、效益、可行性和可推广性。

We should consider that multiple addition or increase concentration of Krilium in field practice may strength the effectiveness of soil amelioration.

同时，野外进行改良应该考虑多次少量施用或增加改良浓度方法来增强改良效果。

Objective To evaluate the effectiveness of frequency transpositional hearing aids on hearing and speech rehabilitation for children with profound hearing loss.

目本研究通过为极重度听力损失儿童验配移频助听器并跟踪其语言训练结果,分析配戴移频助听器后听力语言康复效果。

Objective To discuss the therapeutic effectiveness of intrathecal injection plus needle and scalpel on strictured tenosynovitis of finger flexor tendon.

目探讨注射加针刀治疗指屈肌腱狭窄性腱鞘炎疗效。

Objective:To evaluate the effectiveness of high oxygen liquid in circle crisis after replant of fracted limb(finger or toe).

探讨高氧液对断肢(指、趾)再植后循环危象疗效。