For example, in the LD50 test, subjects are forced to ingest poisonous substances (through stomach tubes, vapor spray inhalers or injection) until half of them die.
举例来说，在LD50测试中，受试者(通过胃管，蒸汽喷雾吸入或注射)被迫摄取有毒物质直至其中一半动物死亡。
But he forced me to have an injection and eat many medicines.
可是他却强迫我打针还有吃很多药。
The cause and rule of warpage in the injection-moulding products was introduced. It listed the guarding measures in mold structure, molding technology and forced patterns against warpage.
介绍了注塑制品翘曲变形的原因及其规律。从模具结构、成型工艺、强制定型等方面，列下了避免翘曲变形的措施。
Abstract : To address the issue of "gas lock" caused by CO2 gas-channeling in gas injection wells, the forced pull rod type hollow gas prevention pump for CO2 flooding has been developed.
摘要 ：针对注气井CO2气窜而造成生产井气油比上升，常规管式泵游动阀打不开而导致的“气锁”问题，研制了CO2驱中空强制拉杆式防气泵。
A forced-closing-and-opening plunger pump is developed to solve the problems of gas lock and sand inflow and low pump efficiency in steam injection Wells.
针对辽河油田蒸汽吞吐油井存在气锁、出砂、后期油稠泵效降低的状况，研制了强启闭柱塞抽油泵。
And the mechanisms of forced demoulding, two_time ejection and delayed ejection by a sliding core used in the injection mould were introduced.
分析了沐浴露瓶盖的工艺特点，介绍了瓶盖注射模的结构及工作过程，并介绍了注射模设计中采用的强制脱模、二次顶出、滑动型芯延时顶出机构等。
And the mechanisms of forced demoulding, two_time ejection and delayed ejection by a sliding core used in the injection mould were introduced.
分析了沐浴露瓶盖的工艺特点，介绍了瓶盖注射模的结构及工作过程，并介绍了注射模设计中采用的强制脱模、二次顶出、滑动型芯延时顶出机构等。
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